Title :
Reduced order observer for a class of non-uniformly observable systems
Author :
Besançon, Gildas ; Hammouri, Hassan
Author_Institution :
Lab. d´´Autom. de Grenoble, Saint Martin d´´Heres, France
Abstract :
There exist several observers for some particular nonlinear systems, such that the norm of the estimation error decays to zero irrespective of the input. However, observability of nonlinear systems is known to be dependent on the input. This is why this paper intends to help understanding how such observers can work, by proposing sufficient conditions for a class of non-uniformly observable systems ensuring the existence of an observer stable for any input
Keywords :
matrix algebra; nonlinear control systems; observers; estimation error; nonlinear systems; nonuniformly observable systems; observability; reduced order observer; sufficient condition; Eigenvalues and eigenfunctions; Equations; Linear systems; Nonlinear systems; Observability; Postal services; Stability; Sufficient conditions; Symmetric matrices;
Conference_Titel :
Decision and Control, 1995., Proceedings of the 34th IEEE Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-2685-7
DOI :
10.1109/CDC.1995.478658
