基于复杂网络的混沌同步及其在保密通信中的应用  

Chaos synchronization based on complex networks and its application to secure communication

作　　者：付宏睿[1] 俞建宁[1] 张建刚[1] 丁全红[1] 

机构地区：[1]兰州交通大学数理与软件工程学院,甘肃兰州730070

出　　处：《燕山大学学报》2011年第3期252-256,共5页Journal of Yanshan University

基　　金：国家自然科学基金资助项目(60870008);甘肃省自然科学基金资助项目(3ZS051-A25-030;3ZS-042-B25-049;0803RJZA012;1010RJZA067);甘肃省高校科研基金资助项目(620004)

摘　　要：以复杂网络为背景,根据Lyapunov稳定性理论,研究了全局耦合网络的渐近同步,提出了一种全局混沌同步方案,并在同步的基础上研究了节点之间的保密通信,用混沌遮掩的方法将该同步方案应用于保密通信,将有用的信息信号调控到混沌系统的状态变量中,与混沌信号一起传送到接收端,发送系统和接收系统同步以后,在接收端恢复出信息信号。最后以Chen系统为节点进行数值仿真,验证了结论的可靠性。Taking the complex network as the background,based on Lyapunov stability theorem,the asymptotic synchronization of globally coupled network is studied in this paper,and a method is proposed for global chaos synchronization.Then this method is applied to secure communication through chaotic masking.Used two coupled identical systems,after encrypting in the two sys-tems,information signal can be recovered exactly at the receiver end.Finally,the result of numerical calculation for the global connected networks with Chen nodes shows that the theorem is reliable.

关 键 词：复杂网络 混沌同步 保密通信 

分 类 号：TN918[电子电信—通信与信息系统]