北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 1999, Vol. 22 ›› Issue (3): 12-15.

• 学术论文 • 上一篇    下一篇

耦合映射的混沌广义同步

朱洪波, 肖井华,李向明   

  1. 北京邮电大学基础科学部, 北京100876;
    北京邮电大学函授学院, 北京100088
  • 收稿日期:1999-03-02 出版日期:1999-07-10

Generalized Synchronization in Two Coupled Logistic Maps

Zhu Hongbo, Xiao Jinghua,Li Xiangming   

  1. Department of Basic Science, Beijing University of Posts and Telecommunications, Beijing 100876;
    (Correspondence College,Beijing University of Posts and Telecommunications, Beijing 100088
  • Received:1999-03-02 Online:1999-07-10

摘要: 研究了非线性耦合下两个参数不同的Logistic映射的混沌广义同步问题, 指出采用适当的耦合方式两个处于混沌状态的Logistic映射不仅可以满足稳定的线性关系还可以满足稳定的非线性关系并给出了严格的解析证明.这是一种完全不依赖于数值计算的新方法.本文还给出了实现两个系统混沌广义同步耦合强度需取的范围以及两个系统保持稳定的线性关系和稳定的非线性关系的具体函数形式.

关键词: 混沌, 广义同步, 耦合

Abstract: Interest in synchronization of chaos has increased because of its possible relevance to secure communication. Recently, papers discussing a more general idea of synchronization have appeared in the literature. We investigate chaossynchronization of nonidentical coupled maps. It is shown that two coupled Logistic maps at different parameter values may not only satisfy stable linear relation but also nonlinear relation with proper coupled fashion. Thestrict analytical proof about it is proposed. This is a new method that don't rely on numerical method completely. We also give the range of the coefficient ofcoupling in generalized synchronization and the functions of the stable linear relation and the stable nonlinear relation.

Key words: chaos, generalized synchronization, couple

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