A chaos-based communication scheme via robust asymptotic feedback

Author

Femat, Ricardo ; Jauregui-Ortiz, Ramón ; Solís-Perales, Gualberto

Author_Institution

Univ. Autonoma de San Luis Potosi, Mexico

Volume

48

Issue

10

fYear

2001

fDate

10/1/2001 12:00:00 AM

Firstpage

1161

Lastpage

1169

Abstract

A communication scheme based on chaos synchronization via feedback is presented. The main idea is to construct an augmented dynamical system from the synchronization error system, which is itself uncertain. Dynamic output feedback is applied to perform synchronization in spite of transmitter/receiver mismatches. In this way, the transmitted message (which can be analog or digital) can be recovered. Two illustrative examples are presented. (1) The Chua oscillator is used to show that the message signal is recovered in spite of parametric transmitter/receiver mismatches. (2) Two second-order driven oscillators are presented to show that the message can be recovered in spite of a strictly different model, which results in different master/slave dynamics

Keywords

Chua´s circuit; chaos; feedback; nonlinear dynamical systems; synchronisation; telecommunication security; Chua oscillator; augmented dynamical system; chaos synchronization; chaos-based communication scheme; dynamic output feedback; master/slave dynamics; message signal; robust asymptotic feedback; second-order driven oscillators; secure communication; synchronization error system; transmitter/receiver mismatches; Chaotic communication; Communication system security; Master-slave; Mexico Council; Oscillators; Output feedback; Robustness; Signal processing; Testing; Transmitters;

fLanguage

English

Journal_Title

Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on

Publisher

ieee

ISSN

1057-7122

Type

jour

DOI

10.1109/81.956010

Filename

956010