Title: Observer design for classes of non-linear networked control systems

Authors: Romain Postoyan; Tarek Ahmed-Ali; Françoise Lamnabhi-Lagarrigue

Addresses: LSS-CNRS, Univ Paris-Sud, SUPELEC, 3 rue Joliot Curie, 91192 Gif-sur-Yvette, France. ' GREYC-CNRS, Univ Caen Basse Normandie, 6 boulevard du Maréchal Juin, 14050 Caen Cedex 9, France. ' LSS-CNRS, SUPELEC, EECI, 3 rue Joliot Curie, 91192 Gif-sur-Yvette, France

Abstract: Assuming a class of continuous-time observers is known for a given non-linear system, an observation structure is derived when sensors information is subject to network-induced communication constraints. The approach is based on the recent results on hybrid observers for sampled-data systems by Karafyllis and Kravaris (2009). Considering two classes of protocols, some asymptotic stability properties are shown to hold for the observation error, under some conditions, and explicit bounds on the maximum allowable transmission interval are given.

Keywords: nonlinear observers; networked control systems; observer design; sensor information; communication constraints; asymptotic stability; transmission interval.

DOI: 10.1504/IJMIC.2012.045216

International Journal of Modelling, Identification and Control, 2012 Vol.15 No.2, pp.108 - 116

Published online: 30 Jan 2012 *

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