Title

On The State Observation And Output-Feedback Problems For Nonlinear Uncertain Dynamic-Systems

Authors

Authors

D. M. Dawson; Z. Qu;J. C. Carroll

Comments

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Abbreviated Journal Title

Syst. Control Lett.

Keywords

ROBUST CONTROL; OBSERVER; OUTPUT FEEDBACK; NONLINEAR SYSTEMS; EXPONENTIAL CONVERGENCE; OBSERVERS; Automation & Control Systems; Operations Research & Management Science

Abstract

In this paper, we examine the problems of state observation and state trajectory control by output feedback for the class of non-linear systems in [3,11]. We begin by modifying a known discontinuous variable structure type observer into a continuous type observer that guarantees the observation error is Globally Exponentially Stable (GES). We then modify a known discontinuous variable structure type output feedback controller into continuous type output feedback controller that forces the state to the origin in the GES sense. Specific time-varying bounds on the observation error and the state trajectory are also developed; revealing how the corresponding observer or control parameters can be adjusted to improve the system performance.

Journal Title

Systems & Control Letters

Volume

18

Issue/Number

3

Publication Date

1-1-1992

Document Type

Article

Language

English

First Page

217

Last Page

222

WOS Identifier

WOS:A1992HJ95900008

ISSN

0167-6911

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