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1 ITLAG - Instituto Tecnológico de la Laguna 2 NON-A - Non-Asymptotic estimation for online systems Inria Lille - Nord Europe, CRIStAL - Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189 3 Ecole Centrale de Lille 4 SyNeR - Systèmes Non Linéaires et à Retards CRIStAL - Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189

Abstract : In this paper the problem of simultaneous state and parameter estimation is studied for a class of uncertain nonlinear systems. A discontinuous adaptive sliding-mode observer is proposed based on a discontinuous nonlinear parameter estimation algorithm. It is shown that such an algorithm provides a rate of convergence faster than exponential. Then, the proposed discontinuous parameter estimation algorithm is included in the structure of a sliding-mode state observer providing an ultimate bound for the full estimation error. Some simulation results illustrate the feasibility of the proposed adaptive sliding-mode observer.

Keywords : Adaptive observer Sliding-modes Nonlinear systems





Autor: Hector Ríos - Denis Efimov - Wilfrid Perruquetti -

Fuente: https://hal.archives-ouvertes.fr/



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