A new approach to state observation of nonlinear systems with delayed output

Author

Germani, A. ; Manes, C. ; Pepe, P.

Author_Institution

Dipt. di Ingegneria Elettrica, L´´Aquila Univ., Italy

Volume

47

Issue

1

fYear

2002

fDate

1/1/2002 12:00:00 AM

Firstpage

96

Lastpage

101

Abstract

The article presents a new approach for the construction of a state observer for nonlinear systems when the output measurements are available for computations after a nonnegligible time delay. The proposed observer consists of a chain of observation algorithms reconstructing the system state at different delayed time instants (chain observer). Conditions are given for ensuring global exponential convergence to zero of the observation error for any given delay in the measurements. The implementation of the observer is simple and computer simulations demonstrate its effectiveness

Keywords

convergence; delays; nonlinear control systems; observers; chain observer; computer simulations; delayed output; delayed time instants; global exponential convergence; non negligible time delay; nonlinear systems; observation algorithms; observation error; output measurements; state observation; state observer; state prediction; system state; Application software; Control systems; Convergence; Delay effects; Delay systems; Equations; Linear systems; Nonlinear systems; Open loop systems; Time measurement;

fLanguage

English

Journal_Title

Automatic Control, IEEE Transactions on

Publisher

ieee

ISSN

0018-9286

Type

jour

DOI

10.1109/9.981726

Filename

981726