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IEEE transactions on industrial electronics |
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Ajouter le résultat dans votre panierEffects of LO phase and amplitude imbalances and phase noise on M -QAM transceiver performance / Chen, ZhenQi in IEEE transactions on industrial electronics, Vol. 57 N° 5 (Mai 2010)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1505 - 1517
Titre : Effects of LO phase and amplitude imbalances and phase noise on M -QAM transceiver performance Type de document : texte imprimé Auteurs : Chen, ZhenQi, Auteur ; Dai, Fa Foster, Auteur Année de publication : 2011 Article en page(s) : pp. 1505 - 1517 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Amplitude imbalance Error vector magnitude (EVM) Local oscillation (LO) generation Phase imbalance Phase noise Quadrature amplitude modulation (QAM) Symbol error rate (SER) Transceiver RFIC Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a rigorous analytical model for analyzing the effects of local oscillator output imperfections such as phase/amplitude imbalances and phase noise on M -ary quadrature amplitude modulation (M-QAM) transceiver performance. A closed-form expression of the error vector magnitude (EVM) and an analytic expression of the symbol error rate (SER) are derived considering a single-carrier linear transceiver link with additive white Gaussian noise channel. The proposed analytical model achieves a good agreement with the simulation results based on the Monte Carlo method. The proposed QAM imperfection analysis model provides an efficient means for system and circuit designers to analyze the wireless transceiver performance and specify the transceiver block specifications. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409646 [article] Effects of LO phase and amplitude imbalances and phase noise on M -QAM transceiver performance [texte imprimé] / Chen, ZhenQi, Auteur ; Dai, Fa Foster, Auteur . - 2011 . - pp. 1505 - 1517.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1505 - 1517
Mots-clés : Amplitude imbalance Error vector magnitude (EVM) Local oscillation (LO) generation Phase imbalance Phase noise Quadrature amplitude modulation (QAM) Symbol error rate (SER) Transceiver RFIC Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a rigorous analytical model for analyzing the effects of local oscillator output imperfections such as phase/amplitude imbalances and phase noise on M -ary quadrature amplitude modulation (M-QAM) transceiver performance. A closed-form expression of the error vector magnitude (EVM) and an analytic expression of the symbol error rate (SER) are derived considering a single-carrier linear transceiver link with additive white Gaussian noise channel. The proposed analytical model achieves a good agreement with the simulation results based on the Monte Carlo method. The proposed QAM imperfection analysis model provides an efficient means for system and circuit designers to analyze the wireless transceiver performance and specify the transceiver block specifications. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409646
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1518 - 1525
Titre : The design method and performance analysis of RF subsampling frontend for SDR/CR receivers Type de document : texte imprimé Auteurs : Kim, Hyung-Jung, Auteur ; Kim, Jin-Up, Auteur ; Kim, Jae-Hyung, Auteur Année de publication : 2011 Article en page(s) : pp. 1518 - 1525 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Digital frontend (DFE) Digital RF RF sampling Software-defined radio (SDR) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : RF subsampling can be used by radio receivers to directly down convert and digitize RF signals. The goal of software-defined radio (SDR) design is to place analog-to-digital converter (ADC) as near the antenna as possible. Based on this, an RF subsampling frontend (FE) for SDR is designed and verified by a hardware platform. The effects of timing jitter, ADC resolution, and folding noise dominating SNR degradation sources in the digital FE were considered. We present an efficient method of SNR measurement and an analysis of its performance. The experimental results indicate that the three degradation sources are sufficient to estimate the performance of the RF subsampling FE, and this conclusion matches the theoretical analysis results. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5280266 [article] The design method and performance analysis of RF subsampling frontend for SDR/CR receivers [texte imprimé] / Kim, Hyung-Jung, Auteur ; Kim, Jin-Up, Auteur ; Kim, Jae-Hyung, Auteur . - 2011 . - pp. 1518 - 1525.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1518 - 1525
Mots-clés : Digital frontend (DFE) Digital RF RF sampling Software-defined radio (SDR) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : RF subsampling can be used by radio receivers to directly down convert and digitize RF signals. The goal of software-defined radio (SDR) design is to place analog-to-digital converter (ADC) as near the antenna as possible. Based on this, an RF subsampling frontend (FE) for SDR is designed and verified by a hardware platform. The effects of timing jitter, ADC resolution, and folding noise dominating SNR degradation sources in the digital FE were considered. We present an efficient method of SNR measurement and an analysis of its performance. The experimental results indicate that the three degradation sources are sufficient to estimate the performance of the RF subsampling FE, and this conclusion matches the theoretical analysis results. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5280266
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1526 - 1537
Titre : A node-to-node location verification method Type de document : texte imprimé Auteurs : Liu, Dawei, Auteur ; Lee, Moon-Chuen, Auteur ; Wu, Dan, Auteur Année de publication : 2011 Article en page(s) : pp. 1526 - 1537 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Key management Localization Location verification Sensor networks Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, we study the problem of location claim verification of a mobile node in a wireless network. Existing verification methods rely primarily on cooperative approaches, which require the cooperation of several detecting nodes for the verification of a location claim from a target node. These methods all suffer from one or both of the drawbacks: 1) not able to cope with a sparse network situation and 2) the design being based on a particular measurement technique. To remedy the drawbacks, we propose a general location verification scheme. It employs a node-to-node approach for location verification and could use different measurement techniques; moreover, it supports location verification in sparse networks. The proposed verification scheme has been shown to be able to achieve satisfactory performance via extensive real-world Global-Positioning-System-based wireless sensor network experiments. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5371911 [article] A node-to-node location verification method [texte imprimé] / Liu, Dawei, Auteur ; Lee, Moon-Chuen, Auteur ; Wu, Dan, Auteur . - 2011 . - pp. 1526 - 1537.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1526 - 1537
Mots-clés : Key management Localization Location verification Sensor networks Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, we study the problem of location claim verification of a mobile node in a wireless network. Existing verification methods rely primarily on cooperative approaches, which require the cooperation of several detecting nodes for the verification of a location claim from a target node. These methods all suffer from one or both of the drawbacks: 1) not able to cope with a sparse network situation and 2) the design being based on a particular measurement technique. To remedy the drawbacks, we propose a general location verification scheme. It employs a node-to-node approach for location verification and could use different measurement techniques; moreover, it supports location verification in sparse networks. The proposed verification scheme has been shown to be able to achieve satisfactory performance via extensive real-world Global-Positioning-System-based wireless sensor network experiments. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5371911
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1538 - 1545
Titre : Data-aided timing synchronization for FM-DCSK UWB communication systems Type de document : texte imprimé Auteurs : Chen, Shaoyuan, Auteur ; Wang, Lin, Auteur ; Chen, Guanrong, Auteur Année de publication : 2011 Article en page(s) : pp. 1538 - 1545 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Frequency-modulated differential chaos shift keying (FM-DCSK) Timing synchronization Transmitted reference (TR) Ultrawideband (UWB) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Frequency-modulated differential chaos shift keying (FM-DCSK) ultrawideband (UWB) communication systems convey information by transmitting ultrashort chaotic pulses (in the nanosecond scale). Since such pulses are ultrashort, timing offset may severely degrade the bit error rate (BER) performance. In this paper, a fast data-aided timing synchronization algorithm with low complexity is proposed for FM-DCSK UWB systems, which capitalizes on the excellent correlation characteristic of chaotic signals. Simulation results show that the BER performance of such systems is fairly close to that of perfect timing thanks to the proposed new algorithm. Moreover, the new algorithm requires less synchronization searching time and lower computational complexity than the conventional one for transmitted reference UWB systems existing in the current literature. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5371909 [article] Data-aided timing synchronization for FM-DCSK UWB communication systems [texte imprimé] / Chen, Shaoyuan, Auteur ; Wang, Lin, Auteur ; Chen, Guanrong, Auteur . - 2011 . - pp. 1538 - 1545.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1538 - 1545
Mots-clés : Frequency-modulated differential chaos shift keying (FM-DCSK) Timing synchronization Transmitted reference (TR) Ultrawideband (UWB) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Frequency-modulated differential chaos shift keying (FM-DCSK) ultrawideband (UWB) communication systems convey information by transmitting ultrashort chaotic pulses (in the nanosecond scale). Since such pulses are ultrashort, timing offset may severely degrade the bit error rate (BER) performance. In this paper, a fast data-aided timing synchronization algorithm with low complexity is proposed for FM-DCSK UWB systems, which capitalizes on the excellent correlation characteristic of chaotic signals. Simulation results show that the BER performance of such systems is fairly close to that of perfect timing thanks to the proposed new algorithm. Moreover, the new algorithm requires less synchronization searching time and lower computational complexity than the conventional one for transmitted reference UWB systems existing in the current literature. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5371909
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1546 - 1554
Titre : A 52-mW 3.1–10.6-GHz fully integrated correlator for IR-UWB transceivers in 0.18 $muhbox{m}$ CMOS Type de document : texte imprimé Auteurs : Xie, Haolu, Auteur ; Xin Wang, Auteur ; Lin, Lin, Auteur Année de publication : 2011 Article en page(s) : pp. 1546 - 1554 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Correlator Impulse radio (IR) Linearity ultrawideband (UWB) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Correlators play key roles in impulse radio ultrawideband (IR-UWB) transceivers. Multiplier-based correlator performs correlation-type demodulation in addition to select desired UWB signals by correlating incoming pulses with templates. This paper reports design and implementation of a fully integrated low-power broadband multiplier-based correlator for a 3.1-10.6-GHz fullband IR-UWB receiver in 0.18 μm CMOS that consists of a UWB multiplier core, two UWB pulse generators, single-ended-to-differential-ended converter, a first-order RC integrator with a 200-MHz bandwidth, and a buffer. Measurement results confirm desired correlation-type demodulation and correlation functions with a conversion gain of 11.03 dB, noise figure of 15.7 dB, very low power consumption of 52 mW and a 1-dB compression point of better than -0.8 dBm over a 7.5-GHz bandwidth. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256229 [article] A 52-mW 3.1–10.6-GHz fully integrated correlator for IR-UWB transceivers in 0.18 $muhbox{m}$ CMOS [texte imprimé] / Xie, Haolu, Auteur ; Xin Wang, Auteur ; Lin, Lin, Auteur . - 2011 . - pp. 1546 - 1554.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1546 - 1554
Mots-clés : Correlator Impulse radio (IR) Linearity ultrawideband (UWB) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Correlators play key roles in impulse radio ultrawideband (IR-UWB) transceivers. Multiplier-based correlator performs correlation-type demodulation in addition to select desired UWB signals by correlating incoming pulses with templates. This paper reports design and implementation of a fully integrated low-power broadband multiplier-based correlator for a 3.1-10.6-GHz fullband IR-UWB receiver in 0.18 μm CMOS that consists of a UWB multiplier core, two UWB pulse generators, single-ended-to-differential-ended converter, a first-order RC integrator with a 200-MHz bandwidth, and a buffer. Measurement results confirm desired correlation-type demodulation and correlation functions with a conversion gain of 11.03 dB, noise figure of 15.7 dB, very low power consumption of 52 mW and a 1-dB compression point of better than -0.8 dBm over a 7.5-GHz bandwidth. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256229
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1555 - 1562
Titre : 1.8 pJ/pulse programmable Gaussian pulse generator for full-band noncarrier impulse-UWB transceivers in 90-nm CMOS Type de document : texte imprimé Auteurs : Qin, Bo, Auteur ; Xin Wang, Auteur ; Xie, Haolu, Auteur Année de publication : 2011 Article en page(s) : pp. 1555 - 1562 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Gaussian pulse generator (PG) Impulse radio (IR) Ultrawideband (UWB) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a single-chip ultralow power programmable Gaussian pulse generator (PG) designed and implemented in the 90-nm CMOS for 3.1-10.6 GHz full-band impulse-radio ultrawideband (UWB) transmitters. Measurement shows that this novel simple two-inverter-based PG achieves the lowest reported power dissipation of merely 1.8 pJ/pulse with a 100-MHz pulse-repeating frequency at 1-V supply, extremely short and programmable pulsewidth ranging from 150 to 350 ps while covering the full 3.1-10.6 GHz UWB spectrum, and a very small area of 0.0068 mm2. It supports up to 6 Gb/s data rate for UWB wireless streaming. A new Federal-CommunicationCommission-aware Gaussian PG design optimization method is discussed and verified experimentally. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5210165 [article] 1.8 pJ/pulse programmable Gaussian pulse generator for full-band noncarrier impulse-UWB transceivers in 90-nm CMOS [texte imprimé] / Qin, Bo, Auteur ; Xin Wang, Auteur ; Xie, Haolu, Auteur . - 2011 . - pp. 1555 - 1562.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1555 - 1562
Mots-clés : Gaussian pulse generator (PG) Impulse radio (IR) Ultrawideband (UWB) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a single-chip ultralow power programmable Gaussian pulse generator (PG) designed and implemented in the 90-nm CMOS for 3.1-10.6 GHz full-band impulse-radio ultrawideband (UWB) transmitters. Measurement shows that this novel simple two-inverter-based PG achieves the lowest reported power dissipation of merely 1.8 pJ/pulse with a 100-MHz pulse-repeating frequency at 1-V supply, extremely short and programmable pulsewidth ranging from 150 to 350 ps while covering the full 3.1-10.6 GHz UWB spectrum, and a very small area of 0.0068 mm2. It supports up to 6 Gb/s data rate for UWB wireless streaming. A new Federal-CommunicationCommission-aware Gaussian PG design optimization method is discussed and verified experimentally. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5210165
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1563 - 1572
Titre : A CMOS transceiver for a multistandard 13.56-MHz RFID reader SoC Type de document : texte imprimé Auteurs : Young-Han Kim, Auteur ; Choi, Yong-Chang, Auteur ; Seo, Min-Woo, Auteur Année de publication : 2011 Article en page(s) : pp. 1563 - 1572 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Multistandard Radio-frequency identification (RFID) Reader System-on-a-chip (SoC) Transceiver Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A CMOS transceiver for a multistandard 13.56-MHz radio-frequency identification reader system-on-a-chip (SoC) is designed and fabricated. The SoC consists of an RF/analog part for modulation/demodulation and a digital part for controlling the transceiver functionality. Prior to designing the integrated circuit, pre-experiments using discrete components and commercial tags are performed. With the results, overall functions and specifications are determined. For supporting multistandard, several blocks are designed with digital controls according to the standards. In the transmitter, a digitally controlled amplitude modulator for various modulation indexes and a power control circuit are adopted. In the receiver, a variable gain amplifier and a level-controllable comparator, which are also controlled digitally according to the standard, are introduced. The full transceiver SoC is implemented in the Chartered 0.18-??m CMOS technology. The measurement results of the implemented chip indicate that the designed transceiver operates in a multistandard mode. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5332286 [article] A CMOS transceiver for a multistandard 13.56-MHz RFID reader SoC [texte imprimé] / Young-Han Kim, Auteur ; Choi, Yong-Chang, Auteur ; Seo, Min-Woo, Auteur . - 2011 . - pp. 1563 - 1572.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1563 - 1572
Mots-clés : Multistandard Radio-frequency identification (RFID) Reader System-on-a-chip (SoC) Transceiver Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A CMOS transceiver for a multistandard 13.56-MHz radio-frequency identification reader system-on-a-chip (SoC) is designed and fabricated. The SoC consists of an RF/analog part for modulation/demodulation and a digital part for controlling the transceiver functionality. Prior to designing the integrated circuit, pre-experiments using discrete components and commercial tags are performed. With the results, overall functions and specifications are determined. For supporting multistandard, several blocks are designed with digital controls according to the standards. In the transmitter, a digitally controlled amplitude modulator for various modulation indexes and a power control circuit are adopted. In the receiver, a variable gain amplifier and a level-controllable comparator, which are also controlled digitally according to the standard, are introduced. The full transceiver SoC is implemented in the Chartered 0.18-??m CMOS technology. The measurement results of the implemented chip indicate that the designed transceiver operates in a multistandard mode. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5332286
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1573 - 1582
Titre : Hardware implementation of RFID mutual authentication protocol Type de document : texte imprimé Auteurs : Huang, Yu-Jung, Auteur ; Yuan, Ching-Chien, Auteur ; Chen, Ming-Kun, Auteur Année de publication : 2011 Article en page(s) : pp. 1573 - 1582 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Field-programmable gate array (FPGA) Implementation Mutual authentification Radio-frequency identification (RFID) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Radio-frequency identification (RFID) is a wireless technology that utilizes radio communication to identify objects with a unique electrical identity. The widespread deployment of RFID technologies may generate new threats to security and user privacy. One of the main drawbacks of RFID technology is the weak authentication systems between a reader and a tag. In general, ??weak?? authentication systems that either leak the password directly over the network or leak sufficient information while performing authentication allow intruders to deduce or guess the password. In this paper, we study the RFID tag-reader mutual authentication scheme. A hardware implementation of the mutual authentication protocol for the RFID system is proposed. The proposed system was simulated using Modelsim XE II and synthesized using Xilinx synthesis technology. The system has been successfully implemented in hardware using an Altera DE2 board that included an Altera Cyclone II field-programmable gate array (FPGA). Finally, the output waveforms from the FPGA were displayed on the 16702A logic analysis system for real-time verification. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5342514 [article] Hardware implementation of RFID mutual authentication protocol [texte imprimé] / Huang, Yu-Jung, Auteur ; Yuan, Ching-Chien, Auteur ; Chen, Ming-Kun, Auteur . - 2011 . - pp. 1573 - 1582.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1573 - 1582
Mots-clés : Field-programmable gate array (FPGA) Implementation Mutual authentification Radio-frequency identification (RFID) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Radio-frequency identification (RFID) is a wireless technology that utilizes radio communication to identify objects with a unique electrical identity. The widespread deployment of RFID technologies may generate new threats to security and user privacy. One of the main drawbacks of RFID technology is the weak authentication systems between a reader and a tag. In general, ??weak?? authentication systems that either leak the password directly over the network or leak sufficient information while performing authentication allow intruders to deduce or guess the password. In this paper, we study the RFID tag-reader mutual authentication scheme. A hardware implementation of the mutual authentication protocol for the RFID system is proposed. The proposed system was simulated using Modelsim XE II and synthesized using Xilinx synthesis technology. The system has been successfully implemented in hardware using an Altera DE2 board that included an Altera Cyclone II field-programmable gate array (FPGA). Finally, the output waveforms from the FPGA were displayed on the 16702A logic analysis system for real-time verification. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5342514
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1583 - 1589
Titre : A low-cost printed CP patch antenna for RFID smart bookshelf in library Type de document : texte imprimé Auteurs : Lau, Pui-Yi, Auteur ; Yung, Kenneth Kin-On, Auteur ; Yung, Edward Kai-Ning, Auteur Année de publication : 2011 Article en page(s) : pp. 1583 - 1589 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Antenna array Circularly polarized (CP) Radio-frequency identification (RFID) antenna Sequentially rotated feeding Small patch antenna Wide-beamwidth antenna Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a small wideband circularly polarized patch antenna printed on the low-cost FR-4 material for radio-frequency-identification smart bookshelves in libraries. The antenna is composed of four top-loaded patches sequentially rotated with a phase difference of 90?? and double shorted to the ground. It operates at a center frequency of 0.915 GHz. The impedance bandwidth (SWR < 2) is 26.8%, the axial-ratio (AR) bandwidth (measured AR < 3 dB) is 11.6%, and the 3-dB beamwidth is 115??. The antenna gain is about 4 dBi, and the overall dimension is reduced by ~60% in length, in comparison with that of the conventional sequential patch antenna. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5332285 [article] A low-cost printed CP patch antenna for RFID smart bookshelf in library [texte imprimé] / Lau, Pui-Yi, Auteur ; Yung, Kenneth Kin-On, Auteur ; Yung, Edward Kai-Ning, Auteur . - 2011 . - pp. 1583 - 1589.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1583 - 1589
Mots-clés : Antenna array Circularly polarized (CP) Radio-frequency identification (RFID) antenna Sequentially rotated feeding Small patch antenna Wide-beamwidth antenna Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a small wideband circularly polarized patch antenna printed on the low-cost FR-4 material for radio-frequency-identification smart bookshelves in libraries. The antenna is composed of four top-loaded patches sequentially rotated with a phase difference of 90?? and double shorted to the ground. It operates at a center frequency of 0.915 GHz. The impedance bandwidth (SWR < 2) is 26.8%, the axial-ratio (AR) bandwidth (measured AR < 3 dB) is 11.6%, and the 3-dB beamwidth is 115??. The antenna gain is about 4 dBi, and the overall dimension is reduced by ~60% in length, in comparison with that of the conventional sequential patch antenna. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5332285
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1590 - 1598
Titre : Multiphase pickups for large lateral tolerance contactless power-transfer systems Type de document : texte imprimé Auteurs : Elliott, Grant A. J., Auteur ; Raabe, Stefan, Auteur ; Covic, Grant A., Auteur Année de publication : 2011 Article en page(s) : pp. 1590 - 1598 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Contactless power transfer Magnetically coupled systems Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : The majority of commercial contactless power-transfer systems used in manufacturing applications can only tolerate limited movement of the power pickup relative to the track to which it is magnetically coupled. This paper describes a new multiphase (quadrature) pickup that significantly improves the tolerance of the power receiver to such relative movement, enabling expanded applications such as continuously powered automatic guided vehicles, robots, and other vehicles to be considered. The advantage gained is largely independent of the track type, so that single-phase or multiphase tracks can be used as desired to improve both the power transfer and lateral tolerance as required. The improvement is achieved by capturing both vertical and horizontal components of magnetic flux around any track. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5229195 [article] Multiphase pickups for large lateral tolerance contactless power-transfer systems [texte imprimé] / Elliott, Grant A. J., Auteur ; Raabe, Stefan, Auteur ; Covic, Grant A., Auteur . - 2011 . - pp. 1590 - 1598.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1590 - 1598
Mots-clés : Contactless power transfer Magnetically coupled systems Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : The majority of commercial contactless power-transfer systems used in manufacturing applications can only tolerate limited movement of the power pickup relative to the track to which it is magnetically coupled. This paper describes a new multiphase (quadrature) pickup that significantly improves the tolerance of the power receiver to such relative movement, enabling expanded applications such as continuously powered automatic guided vehicles, robots, and other vehicles to be considered. The advantage gained is largely independent of the track type, so that single-phase or multiphase tracks can be used as desired to improve both the power transfer and lateral tolerance as required. The improvement is achieved by capturing both vertical and horizontal components of magnetic flux around any track. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5229195
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1599 - 1608
Titre : On the stability of full adaptive observer for induction motor in regenerating mode Type de document : texte imprimé Auteurs : Etien, Erik, Auteur ; Chaigne, Claude, Auteur ; Bensiali, Nadia, Auteur Année de publication : 2011 Article en page(s) : pp. 1599 - 1608 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Induction motor drives Observers Regenerating mode Stability Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper, which deals with the stability of adaptive observers for induction motor in the regenerating mode, proposes a new approach that is consist of describing the error system in state space representation. With this formulation, it is possible to establish a cartography of unstable eigenvalues in the torque/speed plane, thus simplifying the stability analysis. Moreover, a new stability criterion is defined and used to realize stabilizing designs based on feedback gain as well as on the speed adaptation law. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256243 [article] On the stability of full adaptive observer for induction motor in regenerating mode [texte imprimé] / Etien, Erik, Auteur ; Chaigne, Claude, Auteur ; Bensiali, Nadia, Auteur . - 2011 . - pp. 1599 - 1608.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1599 - 1608
Mots-clés : Induction motor drives Observers Regenerating mode Stability Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper, which deals with the stability of adaptive observers for induction motor in the regenerating mode, proposes a new approach that is consist of describing the error system in state space representation. With this formulation, it is possible to establish a cartography of unstable eigenvalues in the torque/speed plane, thus simplifying the stability analysis. Moreover, a new stability criterion is defined and used to realize stabilizing designs based on feedback gain as well as on the speed adaptation law. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256243
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1609 - 1614
Titre : Effective dead-time compensation using a simple vectorial disturbance estimator in PMSM drives Type de document : texte imprimé Auteurs : Kim, Sam-Young, Auteur ; Lee, Wootaik, Auteur ; Rho, Min-Sik, Auteur Année de publication : 2011 Article en page(s) : pp. 1609 - 1614 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Dead-time compensation Permanent-magnet synchronous motor (PMSM) Vectorial disturbance estimation Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents an effective online approach for dead-time compensation using a simple vectorial disturbance estimator in permanent-magnet synchronous motor (PMSM) drives. The proposed estimator can calculate the disturbance voltages, which are induced by dead time, by the use of simple vector operations, i.e., the inner and outer products of flux linkage increments and a unit back electromotive force function. Then, to compensate the effect of dead time, the estimated disturbance voltages are feedforwardly added to the current control loop. This method is applied to the 750-W laboratory PMSM drive to show its effectiveness. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5280234 [article] Effective dead-time compensation using a simple vectorial disturbance estimator in PMSM drives [texte imprimé] / Kim, Sam-Young, Auteur ; Lee, Wootaik, Auteur ; Rho, Min-Sik, Auteur . - 2011 . - pp. 1609 - 1614.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1609 - 1614
Mots-clés : Dead-time compensation Permanent-magnet synchronous motor (PMSM) Vectorial disturbance estimation Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents an effective online approach for dead-time compensation using a simple vectorial disturbance estimator in permanent-magnet synchronous motor (PMSM) drives. The proposed estimator can calculate the disturbance voltages, which are induced by dead time, by the use of simple vector operations, i.e., the inner and outer products of flux linkage increments and a unit back electromotive force function. Then, to compensate the effect of dead time, the estimated disturbance voltages are feedforwardly added to the current control loop. This method is applied to the 750-W laboratory PMSM drive to show its effectiveness. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5280234
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1615 - 1623
Titre : Integrated magnetic self-driven ZVS nonisolated full-bridge converter Type de document : texte imprimé Auteurs : Jin, Ke, Auteur ; Sun, Yi, Auteur ; Xu, Ming, Auteur Année de publication : 2011 Article en page(s) : pp. 1615 - 1623 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Self-driven Soft switching Voltage regulator (VR) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper proposes a high-efficiency high-power-density voltage regulator (VR). An integrated magnetic self-driven full-bridge topology is employed as the main circuit. The proposed VR runs at a 700-kHz switching frequency for a 1 Unit Height (1U) form factor. A novel synchronous rectifier drive method is used to achieve high efficiency. The direct current resistance (DCR) current-sensing method is used for the integrated transformer to achieve adaptive voltage position. Compared with the traditional multiphase buck converter, the proposed solution has higher efficiency, a smaller passive component footprint, and a lower device cost. A 1U 700-kHz VR prototype is built in the laboratory, and it achieves 88.2% efficiency at a 1.2-V/130-A output. The experimental result verifies the theoretical analysis. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5229208 [article] Integrated magnetic self-driven ZVS nonisolated full-bridge converter [texte imprimé] / Jin, Ke, Auteur ; Sun, Yi, Auteur ; Xu, Ming, Auteur . - 2011 . - pp. 1615 - 1623.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1615 - 1623
Mots-clés : Self-driven Soft switching Voltage regulator (VR) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper proposes a high-efficiency high-power-density voltage regulator (VR). An integrated magnetic self-driven full-bridge topology is employed as the main circuit. The proposed VR runs at a 700-kHz switching frequency for a 1 Unit Height (1U) form factor. A novel synchronous rectifier drive method is used to achieve high efficiency. The direct current resistance (DCR) current-sensing method is used for the integrated transformer to achieve adaptive voltage position. Compared with the traditional multiphase buck converter, the proposed solution has higher efficiency, a smaller passive component footprint, and a lower device cost. A 1U 700-kHz VR prototype is built in the laboratory, and it achieves 88.2% efficiency at a 1.2-V/130-A output. The experimental result verifies the theoretical analysis. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5229208
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1624 - 1634
Titre : A review of switch-mode sustain drivers with resonant networks for plasma display panels Type de document : texte imprimé Auteurs : Kwak, Sangshin, Auteur Année de publication : 2011 Article en page(s) : pp. 1624 - 1634 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Energy recovery and injection circuit (ERIC) Plasma display panel (PDP) Resonant network Zero-voltage switching (ZVS) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In the last 30 years, industrial and academic research work has matured plasma display panels (PDPs) to the successful product level for commercial flat-screen television sets. Along with the development of panel manufacturing technology, recent advances in the development of electronic circuitry drivers have paved the way for achieving better performance, higher efficiency, and lower cost. A substantial number of notable driver topologies have been developed; however, most of the presented works have been focused on their own topology and operational principles without giving overall impressions related with other works. This paper is an attempt to provide insights into these diverse drivers of the PDPs by presenting an overview of the topologies. The driver configurations are classified based on the resonant energy source, the connecting type of resonant networks, and the number of levels of panel voltage. Selected drivers in each class are analyzed, and key structural characteristics are identified. Issues related to the practical implementation are also discussed. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256315 [article] A review of switch-mode sustain drivers with resonant networks for plasma display panels [texte imprimé] / Kwak, Sangshin, Auteur . - 2011 . - pp. 1624 - 1634.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1624 - 1634
Mots-clés : Energy recovery and injection circuit (ERIC) Plasma display panel (PDP) Resonant network Zero-voltage switching (ZVS) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In the last 30 years, industrial and academic research work has matured plasma display panels (PDPs) to the successful product level for commercial flat-screen television sets. Along with the development of panel manufacturing technology, recent advances in the development of electronic circuitry drivers have paved the way for achieving better performance, higher efficiency, and lower cost. A substantial number of notable driver topologies have been developed; however, most of the presented works have been focused on their own topology and operational principles without giving overall impressions related with other works. This paper is an attempt to provide insights into these diverse drivers of the PDPs by presenting an overview of the topologies. The driver configurations are classified based on the resonant energy source, the connecting type of resonant networks, and the number of levels of panel voltage. Selected drivers in each class are analyzed, and key structural characteristics are identified. Issues related to the practical implementation are also discussed. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256315
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1635 - 1643
Titre : Single-side sustaining technique for plasma display panel using dual-resonant method Type de document : texte imprimé Auteurs : Jun-Young Lee, Auteur ; Jung Won Kang, Auteur ; Jeong, Yu-Seok, Auteur Année de publication : 2011 Article en page(s) : pp. 1635 - 1643 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Charge pump Plasma display panel (PDP) Sustaining driver Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A new plasma display panel single-side sustaining driver with dual-resonant technique is proposed. Since this circuit enables one to keep the device voltage stresses the same as those of conventional circuit that generates alternating sustaining pulses, it is helpful to reduce driver cost in single-side sustaining driver that suffers from high-voltage stresses. To integrate the sustaining function into single side with a single power source in the driver, the charge-pump method is adopted to make negative sustaining voltage and achieve dual-resonant energy recovery on sustaining mode by controlling the voltage level of energy storage capacitor. Moreover, a method to solve the address voltage increase that is the defect of single-side driving is suggested. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256221 [article] Single-side sustaining technique for plasma display panel using dual-resonant method [texte imprimé] / Jun-Young Lee, Auteur ; Jung Won Kang, Auteur ; Jeong, Yu-Seok, Auteur . - 2011 . - pp. 1635 - 1643.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1635 - 1643
Mots-clés : Charge pump Plasma display panel (PDP) Sustaining driver Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A new plasma display panel single-side sustaining driver with dual-resonant technique is proposed. Since this circuit enables one to keep the device voltage stresses the same as those of conventional circuit that generates alternating sustaining pulses, it is helpful to reduce driver cost in single-side sustaining driver that suffers from high-voltage stresses. To integrate the sustaining function into single side with a single power source in the driver, the charge-pump method is adopted to make negative sustaining voltage and achieve dual-resonant energy recovery on sustaining mode by controlling the voltage level of energy storage capacitor. Moreover, a method to solve the address voltage increase that is the defect of single-side driving is suggested. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256221
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1644 - 1654
Titre : Zero-Voltage and Zero-Current-Switching PWM Combined Three-Level DC/DC Converter Type de document : texte imprimé Auteurs : Fuxin Liu, Auteur ; Yan, Jiajia, Auteur ; Ruan, Xinbo, Auteur Année de publication : 2011 Article en page(s) : pp. 1644 - 1654 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Combined three-level (TL) Dc/dc converter Phase shift Zero-current-switching (ZCS) Zero-voltage-switching (ZVS) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper proposes a zero-voltage and zero-current-switching (ZVZCS) PWM combined three-level (TL) dc/dc converter, which is a combination of a ZVZCS PWM TL converter with a ZVZCS PWM full-bridge converter. The proposed converter has the following advantages: all power switches suffer only half of the input voltage; the voltage across the output filter is very close to the output voltage, which can reduce the output filter inductance significantly; and the voltage stress of the rectifier diodes is reduced too, so that the converter is very suitable for high input voltage and wide input voltage range applications. The converter also can achieve zero-voltage-switching for the leading switches and ZCS for the lagging switches in a wide load range to achieve higher efficiency. The design considerations and procedures are presented in this paper. The operation principle and characteristics of the proposed converter are analyzed and verified on a 400-800-V input and 54-V/20-A output prototype. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256312 [article] Zero-Voltage and Zero-Current-Switching PWM Combined Three-Level DC/DC Converter [texte imprimé] / Fuxin Liu, Auteur ; Yan, Jiajia, Auteur ; Ruan, Xinbo, Auteur . - 2011 . - pp. 1644 - 1654.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1644 - 1654
Mots-clés : Combined three-level (TL) Dc/dc converter Phase shift Zero-current-switching (ZCS) Zero-voltage-switching (ZVS) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper proposes a zero-voltage and zero-current-switching (ZVZCS) PWM combined three-level (TL) dc/dc converter, which is a combination of a ZVZCS PWM TL converter with a ZVZCS PWM full-bridge converter. The proposed converter has the following advantages: all power switches suffer only half of the input voltage; the voltage across the output filter is very close to the output voltage, which can reduce the output filter inductance significantly; and the voltage stress of the rectifier diodes is reduced too, so that the converter is very suitable for high input voltage and wide input voltage range applications. The converter also can achieve zero-voltage-switching for the leading switches and ZCS for the lagging switches in a wide load range to achieve higher efficiency. The design considerations and procedures are presented in this paper. The operation principle and characteristics of the proposed converter are analyzed and verified on a 400-800-V input and 54-V/20-A output prototype. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256312
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1655 - 1662
Titre : Electric dynamic modeling of HID lamps for electronic ballast design Type de document : texte imprimé Auteurs : Sanchez, René Osorio, Auteur ; Vazquez, Nimrod, Auteur ; Hernandez, Claudia, Auteur Année de publication : 2011 Article en page(s) : pp. 1655 - 1662 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Acoustic resonances Design Electronics ballast High-intensity discharge (HID) lamp Modeling Square waveforms Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper describes a nonlinear model of high-intensity discharge (HID) lamps based on electrical variables. The proposal, oriented to the engineering area, has a special application for the design of electronic ballast. Parameters are obtained from straightforward measurement of electrical variables as power, current, and voltage in the lamp. The lamp resistance is obtained as a function of electrical power; which is estimated from the Saha equation. This model, which can be simulated using software such as ??Simulink?? or ??Pspice,?? takes into account some important dynamic behaviors of HID lamps, which are normally omitted in some other models suggested in literature nowadays. Experimental and simulation results are shown. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5280205 [article] Electric dynamic modeling of HID lamps for electronic ballast design [texte imprimé] / Sanchez, René Osorio, Auteur ; Vazquez, Nimrod, Auteur ; Hernandez, Claudia, Auteur . - 2011 . - pp. 1655 - 1662.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1655 - 1662
Mots-clés : Acoustic resonances Design Electronics ballast High-intensity discharge (HID) lamp Modeling Square waveforms Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper describes a nonlinear model of high-intensity discharge (HID) lamps based on electrical variables. The proposal, oriented to the engineering area, has a special application for the design of electronic ballast. Parameters are obtained from straightforward measurement of electrical variables as power, current, and voltage in the lamp. The lamp resistance is obtained as a function of electrical power; which is estimated from the Saha equation. This model, which can be simulated using software such as ??Simulink?? or ??Pspice,?? takes into account some important dynamic behaviors of HID lamps, which are normally omitted in some other models suggested in literature nowadays. Experimental and simulation results are shown. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5280205
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1663 - 1669
Titre : Magnetic component model for planar structures based on transmission lines Type de document : texte imprimé Auteurs : Prieto, Roberto, Auteur ; Oliver, Jesus A., Auteur ; Cobos, José A., Auteur Année de publication : 2011 Article en page(s) : pp. 1663 - 1669 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Circuit modeling Magnetic components Power electronics Transformers Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Magnetic component models are quite complex if they take into consideration the variation of the field distribution in a three-dimensional (3-D) space. However, if the field distribution can be assumed to be one-dimensional (1-D), the magnetic component models can be drastically simplified because it is feasible to obtain accurate analytical expressions based on the solution of the Maxwell equations for a 1-D field distribution. The field distribution in magnetic components can be assumed to be 1-D when the field depends on one of its coordinates and the dependence on the other coordinates is negligible. Therefore, classical 1-D models have to be modified in order to be applied to planar transformers because their magnetic field vector has a constant direction, but its magnitude is not constant along that direction. This paper presents a 1-D model for planar magnetic transformers. Some comparisons between 2-D approaches and the proposed 1-D model have been carried out in order to show the accuracy of the proposed method. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256214 [article] Magnetic component model for planar structures based on transmission lines [texte imprimé] / Prieto, Roberto, Auteur ; Oliver, Jesus A., Auteur ; Cobos, José A., Auteur . - 2011 . - pp. 1663 - 1669.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1663 - 1669
Mots-clés : Circuit modeling Magnetic components Power electronics Transformers Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Magnetic component models are quite complex if they take into consideration the variation of the field distribution in a three-dimensional (3-D) space. However, if the field distribution can be assumed to be one-dimensional (1-D), the magnetic component models can be drastically simplified because it is feasible to obtain accurate analytical expressions based on the solution of the Maxwell equations for a 1-D field distribution. The field distribution in magnetic components can be assumed to be 1-D when the field depends on one of its coordinates and the dependence on the other coordinates is negligible. Therefore, classical 1-D models have to be modified in order to be applied to planar transformers because their magnetic field vector has a constant direction, but its magnitude is not constant along that direction. This paper presents a 1-D model for planar magnetic transformers. Some comparisons between 2-D approaches and the proposed 1-D model have been carried out in order to show the accuracy of the proposed method. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256214
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1670 - 1677
Titre : Digital average current-mode control of PWM DC–DC converters without current sensors Type de document : texte imprimé Auteurs : Qiu, Ying, Auteur ; Liu, Helen, Auteur ; Xiyou Chen, Auteur Année de publication : 2011 Article en page(s) : pp. 1670 - 1677 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Average current estimation Continuous conduction mode (CCM) Digital control Pulsewidth-modulation dc-dc converter Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper introduces a digital average current-mode control technique for pulsewidth modulation dc-dc converters which only rely on voltage sampling. The proposed approach is to estimate inductor current using first-order discrete-time low-pass filter; therefore, the controller can calculate average inductor current in every switching cycle. As a novel technique of predictive average current control, it has been investigated by choosing an appropriate duty ratio to regulate valley inductor current first and then eliminating error between the estimated average inductor current and a reference current in succedent switching cycle. The algorithm is based on a two-loop control structure to achieve an accurate voltage regulation and is derived for three basic converters: buck, boost, and buck-boost. The validity of the proposed approach has been demonstrated by simulation and experimental results on a dc-dc boost converter. DEWEY : 621.38 ISSN : 278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256190 [article] Digital average current-mode control of PWM DC–DC converters without current sensors [texte imprimé] / Qiu, Ying, Auteur ; Liu, Helen, Auteur ; Xiyou Chen, Auteur . - 2011 . - pp. 1670 - 1677.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1670 - 1677
Mots-clés : Average current estimation Continuous conduction mode (CCM) Digital control Pulsewidth-modulation dc-dc converter Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper introduces a digital average current-mode control technique for pulsewidth modulation dc-dc converters which only rely on voltage sampling. The proposed approach is to estimate inductor current using first-order discrete-time low-pass filter; therefore, the controller can calculate average inductor current in every switching cycle. As a novel technique of predictive average current control, it has been investigated by choosing an appropriate duty ratio to regulate valley inductor current first and then eliminating error between the estimated average inductor current and a reference current in succedent switching cycle. The algorithm is based on a two-loop control structure to achieve an accurate voltage regulation and is derived for three basic converters: buck, boost, and buck-boost. The validity of the proposed approach has been demonstrated by simulation and experimental results on a dc-dc boost converter. DEWEY : 621.38 ISSN : 278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256190
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1678 - 1686
Titre : Soft-switching converter with HF transformer for grid-connected photovoltaic systems Type de document : texte imprimé Auteurs : Cacciato, Mario, Auteur ; Consoli, Alfio, Auteur ; Attanasio, Rosario, Auteur Année de publication : 2011 Article en page(s) : pp. 1678 - 1686 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Distributed generation systems Phase-shift modulation Photovoltaic (PV) power systems Synchronous phase-locked loop (PLL) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, the design, realization, and performance evaluation of a single-phase 3-kW dc/ac power converter, using an active-bridge dc/dc converter and a full-bridge dc/ac, are introduced, presenting a novel solution on the industrial scenario for the considered application. Control algorithms, including the maximum power point tracking, paralleling to the grid, and converter switching signals, are digitally implemented on a standard microcontroller. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256270 [article] Soft-switching converter with HF transformer for grid-connected photovoltaic systems [texte imprimé] / Cacciato, Mario, Auteur ; Consoli, Alfio, Auteur ; Attanasio, Rosario, Auteur . - 2011 . - pp. 1678 - 1686.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1678 - 1686
Mots-clés : Distributed generation systems Phase-shift modulation Photovoltaic (PV) power systems Synchronous phase-locked loop (PLL) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, the design, realization, and performance evaluation of a single-phase 3-kW dc/ac power converter, using an active-bridge dc/dc converter and a full-bridge dc/ac, are introduced, presenting a novel solution on the industrial scenario for the considered application. Control algorithms, including the maximum power point tracking, paralleling to the grid, and converter switching signals, are digitally implemented on a standard microcontroller. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256270
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1687 - 1700
Titre : Multifunctional intelligent autonomous parking controllers for carlike mobile robots Type de document : texte imprimé Auteurs : Li, Tzuu-Hseng S., Auteur ; Yeh, Ying-Chieh, Auteur ; Wu, Jyun-Da, Auteur Année de publication : 2011 Article en page(s) : pp. 1687 - 1700 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Autonomous fuzzy behavior control Carlike mobile robot (CLMR) Fuzzy fusion control NIOS developement system Real-time implementation Sonar binaural method Ultrasonic sensor array Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : An increasing number of carlike mobile robot (CLMR) studies have addressed the issues of autonomous parking and obstacle avoidance. An autonomous parking controller can provide convenience to a novice driver. However, if the controller is not designed adequately, it may endanger the car and the driver. Therefore, this paper presents a novel multifunctional intelligent autonomous parking controller that is capable of effectively parking the CLMR in an appropriate parking space, by integrating sensor data capable of obtaining the surrounding data of the robot. An ultrasonic sensor array system has been developed with group-sensor firing intervals. A binaural approach to the CLMR has been adopted for providing complete contactless sensory coverage of the entire workspace. The proposed heuristic controller can obtain the posture of a mobile robot in a parking space. In addition, the controller can ensure the ability of the CLMR to withstand collision to guarantee safe parking. Moreover, the CLMR can recognize the parking space and the obstacle position in dynamic environment. Therefore, the proposed controller installed in a car could ensure safe driving. Finally, practical experiments demonstrate that the proposed multifunctional intelligent autonomous parking controllers are feasible and effective. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5280204 [article] Multifunctional intelligent autonomous parking controllers for carlike mobile robots [texte imprimé] / Li, Tzuu-Hseng S., Auteur ; Yeh, Ying-Chieh, Auteur ; Wu, Jyun-Da, Auteur . - 2011 . - pp. 1687 - 1700.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1687 - 1700
Mots-clés : Autonomous fuzzy behavior control Carlike mobile robot (CLMR) Fuzzy fusion control NIOS developement system Real-time implementation Sonar binaural method Ultrasonic sensor array Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : An increasing number of carlike mobile robot (CLMR) studies have addressed the issues of autonomous parking and obstacle avoidance. An autonomous parking controller can provide convenience to a novice driver. However, if the controller is not designed adequately, it may endanger the car and the driver. Therefore, this paper presents a novel multifunctional intelligent autonomous parking controller that is capable of effectively parking the CLMR in an appropriate parking space, by integrating sensor data capable of obtaining the surrounding data of the robot. An ultrasonic sensor array system has been developed with group-sensor firing intervals. A binaural approach to the CLMR has been adopted for providing complete contactless sensory coverage of the entire workspace. The proposed heuristic controller can obtain the posture of a mobile robot in a parking space. In addition, the controller can ensure the ability of the CLMR to withstand collision to guarantee safe parking. Moreover, the CLMR can recognize the parking space and the obstacle position in dynamic environment. Therefore, the proposed controller installed in a car could ensure safe driving. Finally, practical experiments demonstrate that the proposed multifunctional intelligent autonomous parking controllers are feasible and effective. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5280204
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1701 - 1709
Titre : ZMP-based online jumping pattern generation for a one-legged robot Type de document : texte imprimé Auteurs : Ugurlu, Barkan, Auteur ; Kawamura, Atsuo, Auteur Année de publication : 2011 Article en page(s) : pp. 1701 - 1709 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Angular momentum Euler's equations Jumping robot Polar coordinates Zero moment point (ZMP) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper is aimed at presenting a method to generate online jumping patterns, which can be applied to one-legged jumping robots and optionally to humanoid robots. Our proposed method is based on ensuring the overall dynamic balance through the complete jumping cycle. To be able to reach this goal, we discretized the zero moment point equation in polar coordinates so that we are able to include angular momentum information in a natural way. Thus, undesired torso angle fluctuation is expected to be more restrainable compared to other methods in which angular momentum information is ignored or zero referenced. Moreover, we unified support and flight phases in terms of motion generation. Having obtained successful simulation results and vertical jumping experiments in our previous work, we conducted forward jumping experiments. As the result, we obtained successful and repetitive jumping cycles, which satisfactorily verify the proposed method. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256313 [article] ZMP-based online jumping pattern generation for a one-legged robot [texte imprimé] / Ugurlu, Barkan, Auteur ; Kawamura, Atsuo, Auteur . - 2011 . - pp. 1701 - 1709.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1701 - 1709
Mots-clés : Angular momentum Euler's equations Jumping robot Polar coordinates Zero moment point (ZMP) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper is aimed at presenting a method to generate online jumping patterns, which can be applied to one-legged jumping robots and optionally to humanoid robots. Our proposed method is based on ensuring the overall dynamic balance through the complete jumping cycle. To be able to reach this goal, we discretized the zero moment point equation in polar coordinates so that we are able to include angular momentum information in a natural way. Thus, undesired torso angle fluctuation is expected to be more restrainable compared to other methods in which angular momentum information is ignored or zero referenced. Moreover, we unified support and flight phases in terms of motion generation. Having obtained successful simulation results and vertical jumping experiments in our previous work, we conducted forward jumping experiments. As the result, we obtained successful and repetitive jumping cycles, which satisfactorily verify the proposed method. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256313
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1710 - 1718
Titre : Seeker optimization algorithm for digital IIR filter design Type de document : texte imprimé Auteurs : Dai, Chaohua, Auteur ; Chen, Weirong, Auteur ; Zhu, Yunfang, Auteur Année de publication : 2011 Article en page(s) : pp. 1710 - 1718 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Digital infinite-impulse-response (IIR) Filter design Global optimization Heuristics Seeker optimization algorithm (SOA) System identification Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Since the error surface of digital infinite-impulse-response (IIR) filters is generally nonlinear and multimodal, global optimization techniques are required in order to avoid local minima. In this paper, a seeker-optimization-algorithm (SOA)-based evolutionary method is proposed for digital IIR filter design. SOA is based on the concept of simulating the act of human searching in which the search direction is based on the empirical gradient by evaluating the response to the position changes and the step length is based on uncertainty reasoning by using a simple fuzzy rule. The algorithm's performance is studied with comparison of three versions of differential evolution algorithms, four versions of particle swarm optimization algorithms, and genetic algorithm. The simulation results show that SOA is superior or comparable to the other algorithms for the employed examples and can be efficiently used for IIR filter design. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5229209 [article] Seeker optimization algorithm for digital IIR filter design [texte imprimé] / Dai, Chaohua, Auteur ; Chen, Weirong, Auteur ; Zhu, Yunfang, Auteur . - 2011 . - pp. 1710 - 1718.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1710 - 1718
Mots-clés : Digital infinite-impulse-response (IIR) Filter design Global optimization Heuristics Seeker optimization algorithm (SOA) System identification Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Since the error surface of digital infinite-impulse-response (IIR) filters is generally nonlinear and multimodal, global optimization techniques are required in order to avoid local minima. In this paper, a seeker-optimization-algorithm (SOA)-based evolutionary method is proposed for digital IIR filter design. SOA is based on the concept of simulating the act of human searching in which the search direction is based on the empirical gradient by evaluating the response to the position changes and the step length is based on uncertainty reasoning by using a simple fuzzy rule. The algorithm's performance is studied with comparison of three versions of differential evolution algorithms, four versions of particle swarm optimization algorithms, and genetic algorithm. The simulation results show that SOA is superior or comparable to the other algorithms for the employed examples and can be efficiently used for IIR filter design. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5229209
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1719 - 1727
Titre : Voltage-boosting converter based on charge pump and coupling inductor with passive voltage clamping Type de document : texte imprimé Auteurs : Hwu, K.I., Auteur ; Yau, Y.T., Auteur Année de publication : 2011 Article en page(s) : pp. 1719 - 1727 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Charge pump Coupling industor Multiphase Passive voltage-clamping circuit Voltage boosting Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A new voltage-boosting converter, combining a charge pump and a coupling inductor, together with a passive voltage-clamping circuit which pumps part of the leakage inductance energy to the output, is presented herein. Therefore, by doing so, the efficiency tends to be flat between the minimum and rated loads, which is similar to the behavior of the KY converter. Moreover, the implementation of the passive voltage-clamping circuit for this converter with multiphase is very easy. In this paper, some mathematical derivations are given first, and second, simulated and experimental results are provided to verify the effectiveness of the proposed voltage-boosting converter topology. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256323 [article] Voltage-boosting converter based on charge pump and coupling inductor with passive voltage clamping [texte imprimé] / Hwu, K.I., Auteur ; Yau, Y.T., Auteur . - 2011 . - pp. 1719 - 1727.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1719 - 1727
Mots-clés : Charge pump Coupling industor Multiphase Passive voltage-clamping circuit Voltage boosting Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A new voltage-boosting converter, combining a charge pump and a coupling inductor, together with a passive voltage-clamping circuit which pumps part of the leakage inductance energy to the output, is presented herein. Therefore, by doing so, the efficiency tends to be flat between the minimum and rated loads, which is similar to the behavior of the KY converter. Moreover, the implementation of the passive voltage-clamping circuit for this converter with multiphase is very easy. In this paper, some mathematical derivations are given first, and second, simulated and experimental results are provided to verify the effectiveness of the proposed voltage-boosting converter topology. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256323
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1728 - 1734
Titre : Linearizing the output characteristic of GMR current sensors through hysteresis modeling Type de document : texte imprimé Auteurs : Jedlicska, Istvan, Auteur ; Weiss, Roland, Auteur ; Weigel, Robert, Auteur Année de publication : 2011 Article en page(s) : pp. 1728 - 1734 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Giant magnetoresistive (GMR) Hysteresis Linearization Mathematical model Signal conditionning Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a new method for increasing the measurement accuracy of giant magnetoresistive (GMR) sensors. The method used is to linearize the output characteristic by numerically eliminating the hysteresis-the main error source. A simplified mathematical model of the hysteresis is derived from the T(x) model and tested in a software simulation environment by comparing the results with the real measurements. The model is then discretized and implemented on a fixed-point digital signal processor (DSP). An algorithm based on the model is developed in order to eliminate error propagation during the measurements. The 75% improvement in accuracy and the linear output characteristic delivered by the DSP verify the validity of the proposed method. The successful final results demonstrate that modeling hysteresis is a convenient and very effective way to increase the accuracy and the measurement range of GMR sensors in practical applications. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5280195 [article] Linearizing the output characteristic of GMR current sensors through hysteresis modeling [texte imprimé] / Jedlicska, Istvan, Auteur ; Weiss, Roland, Auteur ; Weigel, Robert, Auteur . - 2011 . - pp. 1728 - 1734.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1728 - 1734
Mots-clés : Giant magnetoresistive (GMR) Hysteresis Linearization Mathematical model Signal conditionning Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a new method for increasing the measurement accuracy of giant magnetoresistive (GMR) sensors. The method used is to linearize the output characteristic by numerically eliminating the hysteresis-the main error source. A simplified mathematical model of the hysteresis is derived from the T(x) model and tested in a software simulation environment by comparing the results with the real measurements. The model is then discretized and implemented on a fixed-point digital signal processor (DSP). An algorithm based on the model is developed in order to eliminate error propagation during the measurements. The 75% improvement in accuracy and the linear output characteristic delivered by the DSP verify the validity of the proposed method. The successful final results demonstrate that modeling hysteresis is a convenient and very effective way to increase the accuracy and the measurement range of GMR sensors in practical applications. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5280195
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1735 - 1745
Titre : A hard-disk-drive servo system design using composite nonlinear-feedback control with optimal nonlinear gain tuning methods Type de document : texte imprimé Auteurs : Lan, Weiyao, Auteur ; Thum, Chin Kwan, Auteur ; Chen, Ben M., Auteur Année de publication : 2011 Article en page(s) : pp. 1735 - 1745 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Hard disk drive (HDD) Nonlinear feedback Servo system Tracking control Transient performance Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper investigates the design of composite nonlinear-feedback (CNF) control law for a hard-disk-drive (HDD) servo system. First, a scaled nonlinear function is introduced for the CNF control law, in which a parameter is scaled by the error between the amplitude of the target reference and the initial value of the system controlled output. The closed-loop system under the scaled function has robust transient performance to the variation of the amplitude of the target reference. Then, the parameters of the selected nonlinear function are tuned by optimal tuning methods. More specifically, the parameter-tuning problem is formulated as an optimization problem, which can be solved efficiently via numerical methods. The simulation and experimental results show that the control law designed using the new approach yields excellent performance for both track seeking and track following in the HDD servo system. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256288 [article] A hard-disk-drive servo system design using composite nonlinear-feedback control with optimal nonlinear gain tuning methods [texte imprimé] / Lan, Weiyao, Auteur ; Thum, Chin Kwan, Auteur ; Chen, Ben M., Auteur . - 2011 . - pp. 1735 - 1745.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1735 - 1745
Mots-clés : Hard disk drive (HDD) Nonlinear feedback Servo system Tracking control Transient performance Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper investigates the design of composite nonlinear-feedback (CNF) control law for a hard-disk-drive (HDD) servo system. First, a scaled nonlinear function is introduced for the CNF control law, in which a parameter is scaled by the error between the amplitude of the target reference and the initial value of the system controlled output. The closed-loop system under the scaled function has robust transient performance to the variation of the amplitude of the target reference. Then, the parameters of the selected nonlinear function are tuned by optimal tuning methods. More specifically, the parameter-tuning problem is formulated as an optimization problem, which can be solved efficiently via numerical methods. The simulation and experimental results show that the control law designed using the new approach yields excellent performance for both track seeking and track following in the HDD servo system. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256288
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1746 - 1754
Titre : Coordinated adaptive robust contouring control of an industrial biaxial precision gantry with cogging force compensations Type de document : texte imprimé Auteurs : Hu, Chuxiong, Auteur ; Yao, Bin, Auteur ; Wang, Qingfeng, Auteur Année de publication : 2011 Article en page(s) : pp. 1746 - 1754 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Adaptive control Cogging force Contouring control Linear motor Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Cogging force is an important source of disturbances for linear-motor-driven systems. To obtain a higher level of contouring motion control performance for multiaxis mechanical systems subject to significant nonlinear cogging forces, both the coordinated control of multiaxis motions and the effective compensation of cogging forces are necessary. In addition, the effect of unavoidable velocity measurement noises needs to be sufficiently attenuated. This paper presents a discontinuous-projection-based desired compensation adaptive robust contouring controller to address these control issues all at once. Specifically, the presented approach explicitly takes into account the specific characteristics of cogging forces in the controller designs and employs the task coordinate formulation for coordinated motion controls. Theoretically, the resulting controller achieves a guaranteed transient performance and a steady-state contouring accuracy even in the presence of both parametric uncertainties and uncertain nonlinearities. In addition, the controller also achieves asymptotic output tracking when there are parametric uncertainties only. Comparative experimental results obtained on a high-speed Anorad industrial biaxial precision gantry are presented to verify the excellent contouring performance of the proposed control scheme and the effectiveness of the cogging force compensations. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5226579 [article] Coordinated adaptive robust contouring control of an industrial biaxial precision gantry with cogging force compensations [texte imprimé] / Hu, Chuxiong, Auteur ; Yao, Bin, Auteur ; Wang, Qingfeng, Auteur . - 2011 . - pp. 1746 - 1754.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1746 - 1754
Mots-clés : Adaptive control Cogging force Contouring control Linear motor Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Cogging force is an important source of disturbances for linear-motor-driven systems. To obtain a higher level of contouring motion control performance for multiaxis mechanical systems subject to significant nonlinear cogging forces, both the coordinated control of multiaxis motions and the effective compensation of cogging forces are necessary. In addition, the effect of unavoidable velocity measurement noises needs to be sufficiently attenuated. This paper presents a discontinuous-projection-based desired compensation adaptive robust contouring controller to address these control issues all at once. Specifically, the presented approach explicitly takes into account the specific characteristics of cogging forces in the controller designs and employs the task coordinate formulation for coordinated motion controls. Theoretically, the resulting controller achieves a guaranteed transient performance and a steady-state contouring accuracy even in the presence of both parametric uncertainties and uncertain nonlinearities. In addition, the controller also achieves asymptotic output tracking when there are parametric uncertainties only. Comparative experimental results obtained on a high-speed Anorad industrial biaxial precision gantry are presented to verify the excellent contouring performance of the proposed control scheme and the effectiveness of the cogging force compensations. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5226579
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1755 - 1763
Titre : A wavelet-based approach to internal seal damage diagnosis in hydraulic actuators Type de document : texte imprimé Auteurs : Goharrizi, Amin Yazdanpanah, Auteur ; Sepehri, Nariman, Auteur Année de publication : 2011 Article en page(s) : pp. 1755 - 1763 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Fault detection Hydraulic actuators Internal leakage Wavelet transform (WT) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper describes the application of wavelet transform (WT) to detect internal leakage in hydraulic actuators, caused by seal damage. The method analyzes the pressure signal at one side of the actuator in response to periodic step inputs to the control valve. It is shown that the detailed version of decomposed pressure signal, using discrete WT, establishes feature patterns that can effectively detect internal leakage and its severity. The proposed scheme requires a baseline (threshold) value, predetermined first by analyzing the pressure signal of a healthy actuator. Once the root mean square (rms) of the level-two detail coefficient values, obtained from the measured pressure signals in subsequent offline tests, fall below this baseline, a fault alarm is triggered. Furthermore, the degree of changes of the rms value from the one obtained under normal operating condition indicates the severity of fault. Experimental tests show promising results for detecting internal leakages as low as 0.124 L/min, representing approximately 2.6% reduction of flow rate available to move the actuator. This is done without a need to model the actuator or leakage. Other methods of leakage fault diagnosis require the model of the actuator or leakage fault. Furthermore, no other method reported the internal leakage detection of magnitude as low as the one reported in this paper. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256314 [article] A wavelet-based approach to internal seal damage diagnosis in hydraulic actuators [texte imprimé] / Goharrizi, Amin Yazdanpanah, Auteur ; Sepehri, Nariman, Auteur . - 2011 . - pp. 1755 - 1763.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1755 - 1763
Mots-clés : Fault detection Hydraulic actuators Internal leakage Wavelet transform (WT) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper describes the application of wavelet transform (WT) to detect internal leakage in hydraulic actuators, caused by seal damage. The method analyzes the pressure signal at one side of the actuator in response to periodic step inputs to the control valve. It is shown that the detailed version of decomposed pressure signal, using discrete WT, establishes feature patterns that can effectively detect internal leakage and its severity. The proposed scheme requires a baseline (threshold) value, predetermined first by analyzing the pressure signal of a healthy actuator. Once the root mean square (rms) of the level-two detail coefficient values, obtained from the measured pressure signals in subsequent offline tests, fall below this baseline, a fault alarm is triggered. Furthermore, the degree of changes of the rms value from the one obtained under normal operating condition indicates the severity of fault. Experimental tests show promising results for detecting internal leakages as low as 0.124 L/min, representing approximately 2.6% reduction of flow rate available to move the actuator. This is done without a need to model the actuator or leakage. Other methods of leakage fault diagnosis require the model of the actuator or leakage fault. Furthermore, no other method reported the internal leakage detection of magnitude as low as the one reported in this paper. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256314
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1764 - 1771
Titre : A 2.4-GHz CMOS short-range wireless-sensor-network interface for automotive applications Type de document : texte imprimé Auteurs : Carmo, Joao Paulo, Auteur ; Mendes, Paulo Mateus, Auteur ; Couto, Carlos, Auteur Année de publication : 2011 Article en page(s) : pp. 1764 - 1771 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Automotive sensors Sensor interface Wireless microsystems Wireless sensor networks Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper describes a CMOS interface for short-range wireless sensor networks (CMOS-SRWSN interface). The sensor interface is composed of a sensor readout, electronics for processing and control, a memory, a radio-frequency CMOS transceiver for operation in the 2.4-GHz industrial, scientific, and medical bands, and a planar antenna. The receiver has a sensitivity of -60 dBm and consumes 6.3 mW from a 1.8-V supply. The transmitter delivers an output power of 0 dBm with a power consumption of 11.2 mW. The application of the CMOS-SRWSN interface is in the automotive industry for the reduction of cables and to support the information, communication, and entertainment systems in cars. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256300 [article] A 2.4-GHz CMOS short-range wireless-sensor-network interface for automotive applications [texte imprimé] / Carmo, Joao Paulo, Auteur ; Mendes, Paulo Mateus, Auteur ; Couto, Carlos, Auteur . - 2011 . - pp. 1764 - 1771.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1764 - 1771
Mots-clés : Automotive sensors Sensor interface Wireless microsystems Wireless sensor networks Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper describes a CMOS interface for short-range wireless sensor networks (CMOS-SRWSN interface). The sensor interface is composed of a sensor readout, electronics for processing and control, a memory, a radio-frequency CMOS transceiver for operation in the 2.4-GHz industrial, scientific, and medical bands, and a planar antenna. The receiver has a sensitivity of -60 dBm and consumes 6.3 mW from a 1.8-V supply. The transmitter delivers an output power of 0 dBm with a power consumption of 11.2 mW. The application of the CMOS-SRWSN interface is in the automotive industry for the reduction of cables and to support the information, communication, and entertainment systems in cars. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256300
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1772 - 1786
Titre : Implementation of a transformerless common-mode active filter for offline converter systems Type de document : texte imprimé Auteurs : Heldwein, Marcelo Lobo, Auteur ; Ertl, Hans, Auteur ; Biela, Jurgen, Auteur Année de publication : 2011 Article en page(s) : pp. 1772 - 1786 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Active filter Conducted emissions Three-phase filters Three-phase PWM converters Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a study and practical implementation of an active filter employing a high-frequency (HF) power amplifier and passive-filter components to be connected to the ac power lines in order to mitigate common-mode conducted emissions of three-phase pulsewidth modulation converter systems. The filter topology is chosen from different possibilities listed in a literature survey and studied regarding practical implementation issues, where requirements for an HF power amplifier to be applied in active filtering are derived. Special attention is put on the stability analysis where the challenges for the feedback are discussed, and a simple feedback structure is proposed. Other feedback concepts are analyzed, and limitations posed by stability requirements are presented. A prototype is designed and built, from which mathematical and experimental results are obtained demonstrating the potential and limitations of such a system. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256320 [article] Implementation of a transformerless common-mode active filter for offline converter systems [texte imprimé] / Heldwein, Marcelo Lobo, Auteur ; Ertl, Hans, Auteur ; Biela, Jurgen, Auteur . - 2011 . - pp. 1772 - 1786.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1772 - 1786
Mots-clés : Active filter Conducted emissions Three-phase filters Three-phase PWM converters Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a study and practical implementation of an active filter employing a high-frequency (HF) power amplifier and passive-filter components to be connected to the ac power lines in order to mitigate common-mode conducted emissions of three-phase pulsewidth modulation converter systems. The filter topology is chosen from different possibilities listed in a literature survey and studied regarding practical implementation issues, where requirements for an HF power amplifier to be applied in active filtering are derived. Special attention is put on the stability analysis where the challenges for the feedback are discussed, and a simple feedback structure is proposed. Other feedback concepts are analyzed, and limitations posed by stability requirements are presented. A prototype is designed and built, from which mathematical and experimental results are obtained demonstrating the potential and limitations of such a system. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256320
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1787 - 1798
Titre : A Kalman/particle filter-based position and orientation estimation method using a position sensor/inertial measurement unit hybrid system Type de document : texte imprimé Auteurs : Won, Seong-Hoon .Peter, Auteur ; Melek, Wael William, Auteur ; Golnaraghi, Farid, Auteur Année de publication : 2011 Article en page(s) : pp. 1787 - 1798 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Accelerometer Expert system Gyro Inertial measurement unit (IMU) Kalman filter (KF) Orientation Particle filter (PF) Position Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a novel methodology that estimates position and orientation using one position sensor and one inertial measurement unit. The proposed method estimates orientation using a particle filter and estimates position and velocity using a Kalman filter (KF). In addition, an expert system is used to correct the angular velocity measurement errors. The experimental results show that the orientation errors using the proposed method are significantly reduced compared to the orientation errors obtained from an extended Kalman filter (EKF) approach. The improved orientation estimation using the proposed method leads to better position estimation accuracy. This paper studies the effects of the number of particles of the proposed filter and position sensor noise on the orientation accuracy. Furthermore, the experimental results show that the orientation of the proposed method converges to the correct orientation even when the initial orientation is completely unknown. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256216 [article] A Kalman/particle filter-based position and orientation estimation method using a position sensor/inertial measurement unit hybrid system [texte imprimé] / Won, Seong-Hoon .Peter, Auteur ; Melek, Wael William, Auteur ; Golnaraghi, Farid, Auteur . - 2011 . - pp. 1787 - 1798.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1787 - 1798
Mots-clés : Accelerometer Expert system Gyro Inertial measurement unit (IMU) Kalman filter (KF) Orientation Particle filter (PF) Position Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a novel methodology that estimates position and orientation using one position sensor and one inertial measurement unit. The proposed method estimates orientation using a particle filter and estimates position and velocity using a Kalman filter (KF). In addition, an expert system is used to correct the angular velocity measurement errors. The experimental results show that the orientation errors using the proposed method are significantly reduced compared to the orientation errors obtained from an extended Kalman filter (EKF) approach. The improved orientation estimation using the proposed method leads to better position estimation accuracy. This paper studies the effects of the number of particles of the proposed filter and position sensor noise on the orientation accuracy. Furthermore, the experimental results show that the orientation of the proposed method converges to the correct orientation even when the initial orientation is completely unknown. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256216
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1799 - 1805
Titre : Multilayered image processing for multiscale harris corner detection in digital realization Type de document : texte imprimé Auteurs : Hsiao, Pei-Yung, Auteur ; Lu, Chieh-Lun, Auteur ; Fu, Li-Chen, Auteur Année de publication : 2011 Article en page(s) : pp. 1799 - 1805 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Field-programmable gate array (FPGA) Multilayered image processing Multiscale Harris corner detection Pattern recognition Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : The PC-based software programming used in complex or luxuriant image processing algorithms is time consuming and resource wasting. As appropriate processing for the image data indeed speedups complicated algorithms, we focus on a crucial case - multilayered processes. In this paper, we gauge deeply into the data flow of multilayered image processing to avoid waiting for the result from every previous steps to access the memory which occurs in many applicable algorithms. Based on combining the parallel and pipelined properties to eliminate unnecessary delays, we propose new visual pipeline architecture and use field programmable gate array to implement our hardware scheme. For verification, the multiscale Harris corner detector in cooperating with shape context and thin-plate splines were combined to complete our real-time experiment of the integrated hardware and software (H/S) system for pattern recognition. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409580 [article] Multilayered image processing for multiscale harris corner detection in digital realization [texte imprimé] / Hsiao, Pei-Yung, Auteur ; Lu, Chieh-Lun, Auteur ; Fu, Li-Chen, Auteur . - 2011 . - pp. 1799 - 1805.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1799 - 1805
Mots-clés : Field-programmable gate array (FPGA) Multilayered image processing Multiscale Harris corner detection Pattern recognition Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : The PC-based software programming used in complex or luxuriant image processing algorithms is time consuming and resource wasting. As appropriate processing for the image data indeed speedups complicated algorithms, we focus on a crucial case - multilayered processes. In this paper, we gauge deeply into the data flow of multilayered image processing to avoid waiting for the result from every previous steps to access the memory which occurs in many applicable algorithms. Based on combining the parallel and pipelined properties to eliminate unnecessary delays, we propose new visual pipeline architecture and use field programmable gate array to implement our hardware scheme. For verification, the multiscale Harris corner detector in cooperating with shape context and thin-plate splines were combined to complete our real-time experiment of the integrated hardware and software (H/S) system for pattern recognition. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409580
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1806 - 1813
Titre : Rapid prototyping of graphical user interfaces for petri-net-based controllers Type de document : texte imprimé Auteurs : Gomes, Luis, Auteur ; Lourenco, Joao, Auteur Année de publication : 2011 Article en page(s) : pp. 1806 - 1813 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Design automation Graphical user interfaces (GUIs) Modeling Petri nets Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper describes a tool framework allowing the rapid prototyping of an animated synoptic application associated with an embedded system controller. The motto for developing this tool framework is to be able to automatically generate controllers with associated graphical user interface (GUI) without writing a line of execution code; instead, the tool framework will provide specific aids allowing the designer to define the controller behavior and associated GUI (including static parts and intended dynamics). The behavior of the controller is described through a low-level Petri-net model, and the tool framework supports the definition of characteristics for the intended GUI and the association of the characteristics of the Petri-net behavioral model with specific characteristics of the GUI through a set of dedicated rules. Two main tools are described. The first one, named as ??Animator,?? allows an interactive definition of the graphical characteristics of the synoptic and automatic code generation. The second one, named as ??Synoptic,?? is responsible for the embedded control-execution part, integrating real-time updating of the GUI. The application of the tool framework to a simple automation system, namely, to the controller of a manufacturing system composed of a four-cell first-in-first-out system, is presented. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5229200 [article] Rapid prototyping of graphical user interfaces for petri-net-based controllers [texte imprimé] / Gomes, Luis, Auteur ; Lourenco, Joao, Auteur . - 2011 . - pp. 1806 - 1813.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1806 - 1813
Mots-clés : Design automation Graphical user interfaces (GUIs) Modeling Petri nets Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper describes a tool framework allowing the rapid prototyping of an animated synoptic application associated with an embedded system controller. The motto for developing this tool framework is to be able to automatically generate controllers with associated graphical user interface (GUI) without writing a line of execution code; instead, the tool framework will provide specific aids allowing the designer to define the controller behavior and associated GUI (including static parts and intended dynamics). The behavior of the controller is described through a low-level Petri-net model, and the tool framework supports the definition of characteristics for the intended GUI and the association of the characteristics of the Petri-net behavioral model with specific characteristics of the GUI through a set of dedicated rules. Two main tools are described. The first one, named as ??Animator,?? allows an interactive definition of the graphical characteristics of the synoptic and automatic code generation. The second one, named as ??Synoptic,?? is responsible for the embedded control-execution part, integrating real-time updating of the GUI. The application of the tool framework to a simple automation system, namely, to the controller of a manufacturing system composed of a four-cell first-in-first-out system, is presented. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5229200
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1814 - 1822
Titre : The design and implementation of a wheeled inverted pendulum using an adaptive output recurrent cerebellar model articulation controller Type de document : texte imprimé Auteurs : Chiu, Chih-Hui, Auteur Année de publication : 2011 Article en page(s) : pp. 1814 - 1822 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Adaptive output recurrent cerebellar model articulation controller (AORCMAC) Lyapunov function Wheeled inverted pendulum (WIP) system Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A novel adaptive output recurrent cerebellar model articulation controller (AORCMAC) is utilized to control wheeled inverted pendulums (WIPs) that have a pendulum mounted on two coaxial wheels. This paper focuses mainly on adopting a self-dynamic balancing control strategy for such WIPs. Since the AORCMAC captures system dynamics, it is superior to conventional CMACs in terms of efficient learning and dynamic response. The AORCMAC parameters are adjusted online using the dynamic gradient descent method. The learning rates of the AORCMAC are determined using an analytical method based on a Lyapunov function, such that system convergence is achieved. The variable and optimal learning rates are derived to achieve rapid tracking-error convergence. A WIP standing control is utilized to experimentally verify the effectiveness of the proposed control system. Experimental results indicate that WIPs can stand upright stably with external disturbances via the proposed AORCMAC. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256271 [article] The design and implementation of a wheeled inverted pendulum using an adaptive output recurrent cerebellar model articulation controller [texte imprimé] / Chiu, Chih-Hui, Auteur . - 2011 . - pp. 1814 - 1822.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1814 - 1822
Mots-clés : Adaptive output recurrent cerebellar model articulation controller (AORCMAC) Lyapunov function Wheeled inverted pendulum (WIP) system Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : A novel adaptive output recurrent cerebellar model articulation controller (AORCMAC) is utilized to control wheeled inverted pendulums (WIPs) that have a pendulum mounted on two coaxial wheels. This paper focuses mainly on adopting a self-dynamic balancing control strategy for such WIPs. Since the AORCMAC captures system dynamics, it is superior to conventional CMACs in terms of efficient learning and dynamic response. The AORCMAC parameters are adjusted online using the dynamic gradient descent method. The learning rates of the AORCMAC are determined using an analytical method based on a Lyapunov function, such that system convergence is achieved. The variable and optimal learning rates are derived to achieve rapid tracking-error convergence. A WIP standing control is utilized to experimentally verify the effectiveness of the proposed control system. Experimental results indicate that WIPs can stand upright stably with external disturbances via the proposed AORCMAC. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5256271
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1823 - 1834
Titre : A neural network multiagent architecture applied to industrial networks for dynamic allocation of control strategies using standard function blocks Type de document : texte imprimé Auteurs : Machado, Vinicius, Auteur ; Neto, Adriao Duarte Doria, Auteur ; de Melo, Jorge Dantas, Auteur Année de publication : 2011 Article en page(s) : pp. 1823 - 1834 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Automation Fieldbus fundation LabVIEW Multiagent systems (MASs) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a multiagent architecture applied to factory automation. These agents detect faults in automated processes and allocate intelligent algorithms in field device function blocks (FBs) to solve these faults. We also present a dynamic FB parameter exchange strategy that allows agent fieldbus allocation. This architecture is a foundation for intelligent physical agents standard-based agent platform developed using Foundation Fieldbus technology. The aim is to enable problem detection activities, independent of user intervention. The use of artificial neural network (ANN)-based algorithms enables the agents to learn about fault patterns and adapt an algorithm that can be used in fault situations. Thus, we intend to reduce supervisor intervention in selecting and implementing an appropriate structure for FB algorithms. Furthermore, these algorithms, when implemented in device FBs, provide a solution at the fieldbus level, reducing data traffic between gateway and device, and speeding up the process of problem resolution. We also show some examples of our approach. The first is a neural network architecture change that allocates different types of neural networks in field devices without interrupting the fieldbus network operation. The second shows a multiagent architecture that implements the neural network change in a laboratory test process, where fault scenarios have been simulated. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5229259 [article] A neural network multiagent architecture applied to industrial networks for dynamic allocation of control strategies using standard function blocks [texte imprimé] / Machado, Vinicius, Auteur ; Neto, Adriao Duarte Doria, Auteur ; de Melo, Jorge Dantas, Auteur . - 2011 . - pp. 1823 - 1834.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1823 - 1834
Mots-clés : Automation Fieldbus fundation LabVIEW Multiagent systems (MASs) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a multiagent architecture applied to factory automation. These agents detect faults in automated processes and allocate intelligent algorithms in field device function blocks (FBs) to solve these faults. We also present a dynamic FB parameter exchange strategy that allows agent fieldbus allocation. This architecture is a foundation for intelligent physical agents standard-based agent platform developed using Foundation Fieldbus technology. The aim is to enable problem detection activities, independent of user intervention. The use of artificial neural network (ANN)-based algorithms enables the agents to learn about fault patterns and adapt an algorithm that can be used in fault situations. Thus, we intend to reduce supervisor intervention in selecting and implementing an appropriate structure for FB algorithms. Furthermore, these algorithms, when implemented in device FBs, provide a solution at the fieldbus level, reducing data traffic between gateway and device, and speeding up the process of problem resolution. We also show some examples of our approach. The first is a neural network architecture change that allocates different types of neural networks in field devices without interrupting the fieldbus network operation. The second shows a multiagent architecture that implements the neural network change in a laboratory test process, where fault scenarios have been simulated. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5229259
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1835 - 1844
Titre : Group connectivity model for industrial wireless sensor networks Type de document : texte imprimé Auteurs : Lee, JongHyup, Auteur ; Kwon, Taekyoung, Auteur ; Song, JooSeok, Auteur Année de publication : 2011 Article en page(s) : pp. 1835 - 1844 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Deployment plan Group connectivity Industrial control Industrial networks Wireless sensor networks Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : It is a recent trend to consider wireless sensor networks in harsh industrial environments. With actual deployment of wireless sensor networks, it would be desirable to make a concrete deployment plan regarding connectivities and to place sensors by grouping them according to the planned deployment points, even more in case of targeting multiple objects to be sensed and monitored in harsh environments. The connectedness of groups as well as individual sensors is important specifically for real-time data acquisitions and even more if there are no external communication links among these groups. In this paper, we focus on the connectivity of sensor groups, rather than the individual sensors only, and propose a novel group connectivity model so as to analyze group connectivity and to make a concrete deployment plan of sensor groups with regard to the internal distribution of sensors and group positions. We believe that the proposed model should be useful in planning the deployment of wireless sensor networks in harsh industrial environments where running wires is less practical and also prohibitively expensive. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5280194 [article] Group connectivity model for industrial wireless sensor networks [texte imprimé] / Lee, JongHyup, Auteur ; Kwon, Taekyoung, Auteur ; Song, JooSeok, Auteur . - 2011 . - pp. 1835 - 1844.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1835 - 1844
Mots-clés : Deployment plan Group connectivity Industrial control Industrial networks Wireless sensor networks Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : It is a recent trend to consider wireless sensor networks in harsh industrial environments. With actual deployment of wireless sensor networks, it would be desirable to make a concrete deployment plan regarding connectivities and to place sensors by grouping them according to the planned deployment points, even more in case of targeting multiple objects to be sensed and monitored in harsh environments. The connectedness of groups as well as individual sensors is important specifically for real-time data acquisitions and even more if there are no external communication links among these groups. In this paper, we focus on the connectivity of sensor groups, rather than the individual sensors only, and propose a novel group connectivity model so as to analyze group connectivity and to make a concrete deployment plan of sensor groups with regard to the internal distribution of sensors and group positions. We believe that the proposed model should be useful in planning the deployment of wireless sensor networks in harsh industrial environments where running wires is less practical and also prohibitively expensive. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5280194
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1845 - 1848
Titre : Direct neural-network hardware-implementation algorithm Type de document : texte imprimé Auteurs : Dinu, Andrei, Auteur ; Cirstea, Marcian N., Auteur ; Cirstea, Silvia E., Auteur Année de publication : 2011 Article en page(s) : pp. 1845 - 1848 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Field-programmable gate array (FPGA) Hardware implementation Neural networks Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : An algorithm for compact neural-network hardware implementation is presented, which exploits the special properties of the Boolean functions describing the operation of artificial neurons with step activation function. The algorithm contains three steps: artificial-neural-network (ANN) mathematical model digitization, conversion of the digitized model into a logic-gate structure, and hardware optimization by elimination of redundant logic gates. A set of C++ programs automates algorithm implementation, generating an optimized very high speed integrated circuit hardware description language code. This strategy bridges the gap between ANN design software and hardware design packages (Xilinx). Although the method is directly applicable only to neurons with step activation functions, it can be extended to sigmoidal functions. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5280233 [article] Direct neural-network hardware-implementation algorithm [texte imprimé] / Dinu, Andrei, Auteur ; Cirstea, Marcian N., Auteur ; Cirstea, Silvia E., Auteur . - 2011 . - pp. 1845 - 1848.
Génie électrique
Langues : Anglais (eng)
in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1845 - 1848
Mots-clés : Field-programmable gate array (FPGA) Hardware implementation Neural networks Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : An algorithm for compact neural-network hardware implementation is presented, which exploits the special properties of the Boolean functions describing the operation of artificial neurons with step activation function. The algorithm contains three steps: artificial-neural-network (ANN) mathematical model digitization, conversion of the digitized model into a logic-gate structure, and hardware optimization by elimination of redundant logic gates. A set of C++ programs automates algorithm implementation, generating an optimized very high speed integrated circuit hardware description language code. This strategy bridges the gap between ANN design software and hardware design packages (Xilinx). Although the method is directly applicable only to neurons with step activation functions, it can be extended to sigmoidal functions. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5280233
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| Code-barres | Cote | Support | Localisation | Section | Disponibilité |
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| aucun exemplaire | |||||
