Full and reduced-order-robust adaptive observers for chaotic synchronization

Author

Azemi, Asad ; Yaz, Edwin Engin

Author_Institution

Electr. Eng. Dept., Penn State Delaware County Campus, Media, PA, USA

Volume

3

fYear

2001

fDate

2001

Firstpage

1985

Abstract

Full- and reduced-order adaptive observers are presented for state reconstruction of nonlinear systems with uncertainty having unknown bounds. The observers use nonlinear gains that are smoothened versions of classical sliding-mode gains and they are continuously updated to guarantee a globally stable observation error. These observers are applied to Chua´s circuit in a chaotic synchronization scheme with possible application to secure communications. A performance comparison of full- and reduced-order observers is also included

Keywords

Chua´s circuit; chaos; mean square error methods; observers; reduced order systems; synchronisation; Chua circuit; chaotic synchronization scheme; classical sliding-mode gains; full-order adaptive observers; globally stable observation error; nonlinear gains; nonlinear systems; reduced-order adaptive observers; secure communications; state reconstruction; uncertainty; unknown bounds; Chaos; Chaotic communication; Circuits; Minimax techniques; Nonlinear dynamical systems; Nonlinear systems; Observers; Robustness; Symmetric matrices; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 2001. Proceedings of the 2001

Conference_Location

Arlington, VA

ISSN

0743-1619

Print_ISBN

0-7803-6495-3

Type

conf

DOI

10.1109/ACC.2001.946033

Filename

946033