SQCF系统的全局时滞混沌同步  

Global Synchronization for Time-Delay of SQCF System

作　　者：陈彩霞[1] 卢殿臣[1] 

机构地区：[1]江苏大学非线性科学研究中心,江苏镇江212013

出　　处：《大学数学》2007年第3期73-77,共5页College Mathematics

基　　金：国家自然科学基金资助项目(10071033);江苏省自然科学基金资助项目(BK20022003)

摘　　要：考虑到在通信系统中接收端存在时滞问题,针对SQCF系统,以Lyapunov稳定性理论和矩阵论为基础,提出一种系统的全局混沌同步方案.通过选取适当的耦合参数,使误差系统全局渐近稳定,即使得响应系统在t+τ时刻的状态渐进地趋向于驱动系统在t时刻的状态.并用Mathematic软件给出了数值模拟,理论分析和数值仿真表明,该方法可以较快地实现混沌同步.对系统的第三变量z(t)进行扰动,数值仿真表明在扰动系统下仍能很好地保持同步,表明同步系统具有抗干扰性.Considering a time-delay in the receiver as compared with the transmitter. A practical issue of global chaos synchronization is proposed to the SQCF system in this passage. It is based on the Lyapunov stabilization theory and matrix measure in this passage. By choosing proper coupling parameters, the error system is globally asymptotical stable, such that the state of the slave system at time t＋r is asymptotically synchronizing with the master at time t. And the Mathematical software is used to simulate. Both theoretical analysis and simulation result show the effectiveness and antiinterference ability of this method.

关 键 词：SQCF系统 线性反馈法 轨道时滞 全局混沌同步 

分 类 号：O193[理学—数学]