Documents disponibles écrits par cet auteur

Asymptotic tracking for aircraft via robust and adaptive dynamic Inversion methods / W. MacKunis in IEEE Transactions on control systems technology, Vol. 18 N° 6 (Novembre 2010) 

Public ISBD [article]  in IEEE Transactions on control systems technology > Vol. 18 N° 6 (Novembre 2010) . - pp. 1448-1456 Titre : Asymptotic tracking for aircraft via robust and adaptive dynamic Inversion methods Type de document : texte imprimé Auteurs : W. MacKunis, Auteur ; P.M. Patre, Auteur ; M.K. Kaiser, Auteur Année de publication : 2011 Article en page(s) : pp. 1448-1456 Note générale : Génie Aérospatial Langues : Anglais (eng) Mots-clés : Adaptive  control  Aircraft  tracking  Dynamic  inversion  Lyapunov  methods  Nonlinear  control  Robust  control Index. décimale : 629.1 Résumé : Two asymptotic tracking controllers are designed in this paper, which combine model reference adaptive control and dynamic inversion methodologies in conjunction with the robust integral of the signum of the error (RISE) technique for output tracking of an aircraft system in the presence of parametric uncertainty and unknown, nonlinear disturbances, which are not linearly parameterizable (non-LP). The control designs are complicated by the fact that the control input is multiplied by an uncertain, non-square matrix. A robust control design is presented first, in which partial knowledge of the aircraft model along with constant feedforward estimates of the unknown input parameters are used with a robust control term to stabilize the system. Motivated by the desire to reduce the need for high-gain feedback, an adaptive extension is then presented, in which feedforward adaptive estimates of the input uncertainty are used. These results show how asymptotic tracking control can be achieved for a nonlinear system in the presence of a non-square input matrix containing parametric uncertainty and nonlinear, non-LP disturbances. Asymptotic output tracking is proven via Lyapunov stability analysis, and high-fidelity simulation results are provided to verify the efficacy of the proposed controllers. DEWEY : 629.1 ISSN : 1063-6536 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5405093 [article] Asymptotic tracking for aircraft via robust and adaptive dynamic Inversion methods [texte imprimé] / W. MacKunis, Auteur ; P.M. Patre, Auteur ; M.K. Kaiser, Auteur . - 2011 . - pp. 1448-1456. Génie Aérospatial Langues : Anglais (eng) in IEEE Transactions on control systems technology > Vol. 18 N° 6 (Novembre 2010) . - pp. 1448-1456 Mots-clés : Adaptive  control  Aircraft  tracking  Dynamic  inversion  Lyapunov  methods  Nonlinear  control  Robust  control Index. décimale : 629.1 Résumé : Two asymptotic tracking controllers are designed in this paper, which combine model reference adaptive control and dynamic inversion methodologies in conjunction with the robust integral of the signum of the error (RISE) technique for output tracking of an aircraft system in the presence of parametric uncertainty and unknown, nonlinear disturbances, which are not linearly parameterizable (non-LP). The control designs are complicated by the fact that the control input is multiplied by an uncertain, non-square matrix. A robust control design is presented first, in which partial knowledge of the aircraft model along with constant feedforward estimates of the unknown input parameters are used with a robust control term to stabilize the system. Motivated by the desire to reduce the need for high-gain feedback, an adaptive extension is then presented, in which feedforward adaptive estimates of the input uncertainty are used. These results show how asymptotic tracking control can be achieved for a nonlinear system in the presence of a non-square input matrix containing parametric uncertainty and nonlinear, non-LP disturbances. Asymptotic output tracking is proven via Lyapunov stability analysis, and high-fidelity simulation results are provided to verify the efficacy of the proposed controllers. DEWEY : 629.1 ISSN : 1063-6536 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5405093

Global adaptive output feedback tracking control of an unmanned aerial vehicle / W. MacKunis in IEEE Transactions on control systems technology, Vol. 18 N° 6 (Novembre 2010) 

Public ISBD [article]  in IEEE Transactions on control systems technology > Vol. 18 N° 6 (Novembre 2010) . - pp. 1390-1397 Titre : Global adaptive output feedback tracking control of an unmanned aerial vehicle Type de document : texte imprimé Auteurs : W. MacKunis, Auteur ; Z.D. Wilcox, Auteur ; M.K. Kaiser, Auteur Année de publication : 2011 Article en page(s) : pp. 1390-1397 Note générale : Génie Aérospatial Langues : Anglais (eng) Mots-clés : Adaptive  control  Dynamic  inversion  (DI)  Lyapunov  methods  Nonlinear  control  Robust  control Index. décimale : 629.1 Résumé : An output feedback (OFB) dynamic inversion control strategy is developed for an unmanned aerial vehicle (UAV) that achieves global asymptotic tracking of a reference model. The UAV is modeled as an uncertain linear time-invariant (LTI) system with an additive bounded nonvanishing nonlinear disturbance. A continuous tracking controller is designed to mitigate the nonlinear disturbance and inversion error, and an adaptive law is utilized to compensate for the parametric uncertainty. Global asymptotic tracking of the measurable output states is proven via a Lyapunov-like stability analysis, and high-fidelity simulation results are provided to illustrate the applicability and performance of the developed control law. DEWEY : 629.1 ISSN : 1063-6536 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5357472 [article] Global adaptive output feedback tracking control of an unmanned aerial vehicle [texte imprimé] / W. MacKunis, Auteur ; Z.D. Wilcox, Auteur ; M.K. Kaiser, Auteur . - 2011 . - pp. 1390-1397. Génie Aérospatial Langues : Anglais (eng) in IEEE Transactions on control systems technology > Vol. 18 N° 6 (Novembre 2010) . - pp. 1390-1397 Mots-clés : Adaptive  control  Dynamic  inversion  (DI)  Lyapunov  methods  Nonlinear  control  Robust  control Index. décimale : 629.1 Résumé : An output feedback (OFB) dynamic inversion control strategy is developed for an unmanned aerial vehicle (UAV) that achieves global asymptotic tracking of a reference model. The UAV is modeled as an uncertain linear time-invariant (LTI) system with an additive bounded nonvanishing nonlinear disturbance. A continuous tracking controller is designed to mitigate the nonlinear disturbance and inversion error, and an adaptive law is utilized to compensate for the parametric uncertainty. Global asymptotic tracking of the measurable output states is proven via a Lyapunov-like stability analysis, and high-fidelity simulation results are provided to illustrate the applicability and performance of the developed control law. DEWEY : 629.1 ISSN : 1063-6536 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5357472