Title :
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
fDate :
10/1/2001 12:00:00 AM
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;
Journal_Title :
Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on
