Documents disponibles écrits par cet auteur

Controller design for systems with multipacket transmissions / Ge Guo in Transactions of the ASME . Journal of dynamic systems, measurement, and control, Vol. 134 N° 5 (Septembre 2012) 

Public ISBD [article]  in Transactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 134 N° 5 (Septembre 2012) . - 12 p. Titre : Controller design for systems with multipacket transmissions Type de document : texte imprimé Auteurs : Ge Guo, Auteur ; Zibao Lu, Auteur ; Hui Jin, Auteur Année de publication : 2012 Article en page(s) : 12 p. Note générale : Dynamic systems Langues : Anglais (eng) Mots-clés : State-space-equation  controller  Multipacket  transmission  Quantization  Time-delay Index. décimale : 629.8 Résumé : This paper investigates the problem of stability analysis and state-space-equation controller design for a type of nonlinear systems in which measurement data of the sensors and the control signals are communicated through independent communication channels via a multiple-packet transmission policy. The packet delays (and dropouts) at the sensors side and the actuators side are assumed to be different in properties and are treated separately. A framework of stability analysis and controller design under multiple-packet transmission policy is derived by simultaneous consideration of quantization effect, successive packet delays, dropouts, and noises. The main results are obtained by constructing a new Lyapunov functional and using a new tight bounding technique without introducing any free-weighting matrices. As a general tool for designing state-space-equation controllers for networked control systems, the presented method is less conservative with reduced number of variables and larger upper bounds of time-delays, which is shown by numerical examples. DEWEY : 629.8 ISSN : 0022-0434 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JDSMAA000134000005 [...] [article] Controller design for systems with multipacket transmissions [texte imprimé] / Ge Guo, Auteur ; Zibao Lu, Auteur ; Hui Jin, Auteur . - 2012 . - 12 p. Dynamic systems Langues : Anglais (eng) in Transactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 134 N° 5 (Septembre 2012) . - 12 p. Mots-clés : State-space-equation  controller  Multipacket  transmission  Quantization  Time-delay Index. décimale : 629.8 Résumé : This paper investigates the problem of stability analysis and state-space-equation controller design for a type of nonlinear systems in which measurement data of the sensors and the control signals are communicated through independent communication channels via a multiple-packet transmission policy. The packet delays (and dropouts) at the sensors side and the actuators side are assumed to be different in properties and are treated separately. A framework of stability analysis and controller design under multiple-packet transmission policy is derived by simultaneous consideration of quantization effect, successive packet delays, dropouts, and noises. The main results are obtained by constructing a new Lyapunov functional and using a new tight bounding technique without introducing any free-weighting matrices. As a general tool for designing state-space-equation controllers for networked control systems, the presented method is less conservative with reduced number of variables and larger upper bounds of time-delays, which is shown by numerical examples. DEWEY : 629.8 ISSN : 0022-0434 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JDSMAA000134000005 [...]

Guaranteed cost adaptive control of nonlinear platoons with actuator delay / Wei Yue in Transactions of the ASME . Journal of dynamic systems, measurement, and control, Vol. 134 N° 5 (Septembre 2012) 

Public ISBD [article]  in Transactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 134 N° 5 (Septembre 2012) . - 11 p. Titre : Guaranteed cost adaptive control of nonlinear platoons with actuator delay Type de document : texte imprimé Auteurs : Wei Yue, Auteur ; Ge Guo, Auteur Année de publication : 2012 Article en page(s) : 11 p. Note générale : Dynamic systems Langues : Anglais (eng) Mots-clés : Adaptive  nonlinear  control  Guaranteed  cost  control  Time-varying  nonlinearity  Actuator  delay  String  stability Index. décimale : 629.8 Résumé : This paper presents a guaranteed cost adaptive control (GCAC) algorithm for vehicular platoons with nonlinear dynamics (i.e., combined nonlinearities of manifold dynamics, aerodynamic drag, unmodeled dynamics, etc.) and actuator delay (i.e., fueling and braking delay). First of all, a nonlinear mathematic model of the platoon's longitudinal movement is established, which is shown to be a great improvement of the existing models. The controller is designed by splitting the new model into a linear part and a nonlinear one. In particular, we use a radial basis function neural network (RBFNN) to compensate for the nonlinear part by making precise estimation of it based on a decentralized adaptation law. Then a guaranteed cost controller is designed based on the linear part and the adaptive neural network compensator. The obtained control scheme achieves the objective of both individual vehicle stability and platoon string stability. Simulations are given to demonstrate the effectiveness of the proposed method. DEWEY : 629.8 ISSN : 0022-0434 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JDSMAA000134000005 [...] [article] Guaranteed cost adaptive control of nonlinear platoons with actuator delay [texte imprimé] / Wei Yue, Auteur ; Ge Guo, Auteur . - 2012 . - 11 p. Dynamic systems Langues : Anglais (eng) in Transactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 134 N° 5 (Septembre 2012) . - 11 p. Mots-clés : Adaptive  nonlinear  control  Guaranteed  cost  control  Time-varying  nonlinearity  Actuator  delay  String  stability Index. décimale : 629.8 Résumé : This paper presents a guaranteed cost adaptive control (GCAC) algorithm for vehicular platoons with nonlinear dynamics (i.e., combined nonlinearities of manifold dynamics, aerodynamic drag, unmodeled dynamics, etc.) and actuator delay (i.e., fueling and braking delay). First of all, a nonlinear mathematic model of the platoon's longitudinal movement is established, which is shown to be a great improvement of the existing models. The controller is designed by splitting the new model into a linear part and a nonlinear one. In particular, we use a radial basis function neural network (RBFNN) to compensate for the nonlinear part by making precise estimation of it based on a decentralized adaptation law. Then a guaranteed cost controller is designed based on the linear part and the adaptive neural network compensator. The obtained control scheme achieves the objective of both individual vehicle stability and platoon string stability. Simulations are given to demonstrate the effectiveness of the proposed method. DEWEY : 629.8 ISSN : 0022-0434 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JDSMAA000134000005 [...]