时滞超混沌系统的同步  

Synchronization of Time-delay Chaotic Systems

作　　者：侯沿滨[1] 向廷元[1] 

机构地区：[1]华中科技大学控制科学与工程系

出　　处：《河北工业科技》2002年第2期4-7,共4页Hebei Journal of Industrial Science and Technology

摘　　要：时滞混沌系统是无穷维系统 ,由这样的系统产生的超混沌可具有多个正的L yapunov指数 ,因此系统可以产生复杂的时间序列。这个特征使它特别适用于保密通讯。本文正是根据时滞超混沌系统的这一特点 ,给出了一种同步时滞混沌系统的新方法。通过L yapunov稳定理论得到了系统同步时系统参数满足的条件。数值仿真表明了该方法的有效性。Caotic systems governed by delayed differential equations have an infinite dimensional state space,and can produce hyperchaos with an arbitrarily large number of positive Lyapunov exponents giving rise to very complex time signals.This feature can provide high security of masked messages.According to the feature of delayed chaotic system,a new method is given to synchronize system in this paper.Then based on Lyapunov stability theory,we discuss the condition of the parameters when chaotic system is synchronization.Finally some simulation examples are given to demonstrate the effectiveness of the proposed method.

关 键 词：时滞超混沌系统 同步 LYAPUNOV指数 保密通信 

分 类 号：TN918.1[电子电信—通信与信息系统]