利用状态观测器实现四涡卷超混沌同步保密通信  

Secure Communication by Synchronization of Four-Scroll Hyperchaotic Systems Based on State Observer

作　　者：孙振武[1] 

机构地区：[1]上海电机学院数理教学部,上海201306

出　　处：《上海电机学院学报》2013年第1期28-32,共5页Journal of Shanghai Dianji University

摘　　要：根据系统的稳定性理论,设计了实现超混沌完全同步的状态观测器。利用混沌之间的同步,构建了实现保密通信的技术路线。信号经过加密并被混沌掩盖后,发射给接收端。采用4阶Runge-Kutta方法,对提出的保密通信系统进行了数值仿真。仿真结果显示,超混沌系统和其同步接收器之间在5s内已实现了完全同步,在信道内传递的加密信号中,原始信号完全被混沌所掩盖,仿真结果证实了设计方案的有效性。Based on the stabilization theory, a state observer is designed to realize a complete synchronization of four-scroll hyperchaotic systems. A technique of secure communication is proposed with chaotic synchronization. The encrypted signal is transmitted after being masked by a chaotic scheme. The proposed method is simulated using the fourth-order Runge-Kutta method. The results show that synchronization between the four-scroll hyperchaotic system and its state observer can be established in 5 seconds, and the encrypted signal is completely masked. The results show effectiveness of the method.

关 键 词：混沌 状态观测器 同步 保密通信 

分 类 号：TN918[电子电信—通信与信息系统]