Reference : A simple adaptive observer for nonlinear systems

	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Engineering, computing & technology : Multidisciplinary, general & others
	To cite this reference:	http://hdl.handle.net/2268/15399

Title :	A simple adaptive observer for nonlinear systems
Language :	English
Author, co-author :	Bullinger, Eric [Université de Liège - ULg > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Méthodes computationnelles pour la biologie systémique >]
	Ilchmann, Achim [> > > >]
	Allgöwer, Frank [> > > >]
Publication date :	1998
Main document title :	IFAC Nonlinear Control Systems Design, NOLCOS98
Pages :	781–786
On invitation :	No
Audience :	International
Event name :	Proc. of the IFAC Nonlinear Control Systems Design, NOLCOS98
Event date :	1-3 July 1998
Event place (city) :	Enschede
Event country :	The Netherlands
Abstract :	[en] We present a high-gain observer for nonlinear uniformly observable SISO systems for which the high-gain parameter is determined adaptively online. The adaptation scheme is simple and universal in the sense that it is independent of the system the observer is designed for. Unlike in an earlier approach, the gain is adapted continuously in the present paper. This further simplifies the adaptation law and also leads to lower values of the high-gain parameter. We prove that the observer output error becomes smaller than a user specified bound for large times and that the adaptation converges. The observer is applied to a generic bioreactor
Permalink :	http://hdl.handle.net/2268/15399

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