时变离散时空系统的混沌性  

Chaos of time-varying discrete spatiotemporal systems

作　　者：田传俊[1] 陈关荣[2] 

机构地区：[1]深圳大学信息工程学院,深圳518060 [2]香港城市大学电子工程系

出　　处：《深圳大学学报（理工版）》2013年第5期469-474,共6页Journal of Shenzhen University(Science and Engineering)

基　　金：国家自然科学基金资助项目(61070252)~~

摘　　要：时变离散时空系统含有大量初始参数,将其用于保密通信设计可加强密钥数量.研究一类时变离散时空系统的混沌性,给出这类时变离散时空系统在Devaney意义下混沌的一些新概念,构造出一类特殊的时变离散时空混沌系统.该结果可拓宽离散混沌系统的研究范围.Time-varying discrete spatiotemporal systems contain many tunable parameters and are advantageous in the sense of having a sufficiently large key space for designing good security systems. Chaos in a class of time-var-ying discrete spatiotemporal systems is studied. Several new concepts for these systems to be chaotic in the sense of Devaney are given and a special type of such chaotic systems is constructed. To some extent, the new results have expanded the scope of the research of discrete spatiotemporal chaotic systems.

关 键 词：混沌 保密通信设计 动力系统 离散系统 时变离散时空系统 DEVANEY混沌 

分 类 号：TN911[电子电信—通信与信息系统]