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EXPERIMENTAL RESULTS OF IMPULSIVE SYNCHRONIZATION BETWEEN TWO CHUA'S CIRCUITS - Bifurcations & Chaos

International Journal of Bifurcations and Chaos, 1998, vol. 8, No. 3, pp. 639-644
© World Scientific Publishing Company

Experimental results of impulsive synchronization between two Chua's circuits

Andrey I. Panas*, Tao Yang** and Leon O. Chua**
*)Institute of Radioengineering and Electronics of the Russian Academy of Sciences
Mokhovaya st., 11, Moscow, 103907, Russia

**)Electronics Research Laboratory and Department of Electrical Engineering and Computer Sciences,
Universuty of California at Berkeley, Berkeley, CA 94720, USA

International Journal of Bifurcations and Chaos, 1998, vol. 8, No. 3, pp. 639-644
Received October 30, 1997. Revised December 31, 1997.

Abstract

Impulsive synchronization of chaotic dynamic systems has some important applications to chaotic secure communication and chaotic spread-spectrum communication systems. In this paper we present some experimental results on impulsive synchronization between two Chua's circuits. In our experiments, only one synchronizing impulse sequence is transmitted. The robustness of impulsive synchronization with respect to variations in the frequency and the width of impulses is studied. Experimental results show that robust impulsive synchronization can be achieved under noise conditions and a 2% parameter mismatch between the driving system and the driven system. We also found that an amplified impulse sequence with a gain greater than unity can make the impulsive synchronization more robust. Moreover, we found that impulsive synchronization can be achieved with very narrow impulses.

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International Journal of Bifurcations and Chaos, 1998, vol. 8, No. 3, pp. 639-644 © World Scientific Publishing Company

Experimental results of impulsive synchronization between two Chua's circuits

Abstract

International Journal of Bifurcations and Chaos, 1998, vol. 8, No. 3, pp. 639-644
© World Scientific Publishing Company