Global chaos synchronization of three coupled nonlinear autonomous systems and a novel method of chaos encryption

Xin-Lei An, Jian-Ning Yu, Yan-Dong Chu, Jian-Gang Zhang and Li Zhang

Chaos, Solitons & Fractals, 2009, vol. 42, issue 2, 865-873

Abstract: In this paper, we discussed the fixed points and their linear stability of a new nonlinear autonomous system that introduced by J.C. Sprott. Based on Lyapunov stabilization theorem, a global chaos synchronization scheme of three coupled identical systems is investigated. By choosing proper coupling parameters, the states of all the three systems can be synchronized. Then this method was applied to secure communication through chaotic masking, used three coupled identical systems, propose a novel method of chaos encryption, after encrypting in the previous two transmitters, information signal can be recovered exactly at the receiver end. Simulation results show that the method can realize monotonous synchronization. Further more, the information signal can be recovered undistorted when applying this method to secure communication.

Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:42:y:2009:i:2:p:865-873

DOI: 10.1016/j.chaos.2009.02.017

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