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SPREAD SPECTRUM COMMUNICATION THROUGH MODULATION OF CHAOS

Electronics Research Laboratory and Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA 94720, USA

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CHAI WAH WU

Electronics Research Laboratory and Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA 94720, USA

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MAKOTO ITOH

Electronics Research Laboratory and Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA 94720, USA

Nagasaki University, Japan,

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, and

LEON O. CHUA

Electronics Research Laboratory and Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA 94720, USA

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https://doi.org/10.1142/S0218127493000374Cited by:265 (Source: Crossref)

Abstract

In this letter we demonstrate experimentally how Chua’s circuits can be used to implement a secure communication system. This system is compared to another system proposed earlier. This system has the advantage of transmitting a spread spectrum signal and is also more secure in the sense that better parameter matching is required in order to recover the signal. Furthermore, there is less of a problem with loss of synchronization.