An observer-based chaotic synchronization scheme for time-delay secure communication systems

被引:3
|
作者
Chen, Xuemin [1 ]
Wang, Zidong [2 ]
机构
[1] Texas So Univ, Dept Engn Technol, Houston, TX 77004 USA
[2] Brunel Univ, Dept Informat Syst & Comp, Uxbridge UB8 3PH, Middx, England
关键词
secure communication; time-delay; nonlinear disturbances; chaotic synchronization;
D O I
10.1109/ICNSC.2007.372778
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In this paper, an observer-based chaotic synchronization is studied for a class of time-delay secure communication systems which are subject to delayed state and nonlinear disturbances. The time-delay is allowed to be time-varying, and the non-linearities are assumed to satisfy global Lipschitz conditions. The problem addressed is to design a synchronization scheme which ensures global synchronization of the response system and the driving system for the admissible time-delay as well as nonlinear disturbances. Specifically, some conditions for the existence of the desired observers are derived, and an explicit expression of desired observers is given in terms of some free parameters. A numerical example is presented to show the applicability of the proposed approach.
引用
收藏
页码:209 / +
页数:2
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