Observer design for nonlinear systems under ...
Type de document :
Compte-rendu et recension critique d'ouvrage
DOI :
Titre :
Observer design for nonlinear systems under unknown time-varying delays
Auteur(s) :
Ghanes, Malek [Auteur]
Électronique et Commande des Systèmes Laboratoire [ECS-Lab]
de Leon, Jesus [Auteur]
Instituto de Ingeniería [Mexico]
Barbot, Jean-Pierre [Auteur]
Non-Asymptotic estimation for online systems [NON-A]
Électronique et Commande des Systèmes Laboratoire [ECS-Lab]
Électronique et Commande des Systèmes Laboratoire [ECS-Lab]
de Leon, Jesus [Auteur]
Instituto de Ingeniería [Mexico]
Barbot, Jean-Pierre [Auteur]
Non-Asymptotic estimation for online systems [NON-A]
Électronique et Commande des Systèmes Laboratoire [ECS-Lab]
Titre de la revue :
IEEE Transactions on Automatic Control
Pagination :
1529 - 1534
Éditeur :
Institute of Electrical and Electronics Engineers
Date de publication :
2013-06-06
ISSN :
0018-9286
Discipline(s) HAL :
Informatique [cs]/Automatique
Résumé en anglais : [en]
The design of observers for nonlinear systems with unknown, time-varying, bounded delays, on both state and input, still constitutes an open problem. In this paper, we show how to solve it for a class of nonlinear systems ...
Lire la suite >The design of observers for nonlinear systems with unknown, time-varying, bounded delays, on both state and input, still constitutes an open problem. In this paper, we show how to solve it for a class of nonlinear systems by combining the high gain observer approach with a Lyapunov-Krasovskii functional suitable choice. Sufficient conditions are provided to prove the practical stability of the observer. It is shown that the observation error is bounded and depends on the size of two parameters: the known upper bound delay of the unknown time-varying function delay and the instantaneous state dynamic variation. Furthermore, for the particular case of constant known time delay, the convergence of the proposed observer becomes exponential. The feasibility of the proposed strategy is illustrated by a numerical example.Lire moins >
Lire la suite >The design of observers for nonlinear systems with unknown, time-varying, bounded delays, on both state and input, still constitutes an open problem. In this paper, we show how to solve it for a class of nonlinear systems by combining the high gain observer approach with a Lyapunov-Krasovskii functional suitable choice. Sufficient conditions are provided to prove the practical stability of the observer. It is shown that the observation error is bounded and depends on the size of two parameters: the known upper bound delay of the unknown time-varying function delay and the instantaneous state dynamic variation. Furthermore, for the particular case of constant known time delay, the convergence of the proposed observer becomes exponential. The feasibility of the proposed strategy is illustrated by a numerical example.Lire moins >
Langue :
Anglais
Vulgarisation :
Non
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