用于保密通信系统的混沌自适应逆控制方法

利用自适应逆控制方法设计混沌系统的噪声消除器,实现了混沌掩盖保密通信.针对混沌掩盖保密通信中含有扰动和噪声的混沌加密信号,设计了自适应噪声消除器,有效消除信号传榆中的扰动与噪声,恢复初始的信息信号,从而实现系统的同步.通过MATLAB数值仿真证实了该方法的可行性和有效性.该方法有效克服了通信系统中信道噪声对混沌同步和信息传输的干扰,并且同步速度快,在信道噪声普遍存在的情况下,能够精确传输信息.

Daptive inverse control about chaos in the secrecy communication system

This paper designes the controller to eliminate noise of chaotic system based on the method of daptive inverse control, which realizes the chaotic masking secrecy communication system. In the chaotic secure communication system, when a chaos signal with pertubation and noise is controlled by adaptive disturbance canceler, the disturbances and noise will be erased,and we get original signal, so the synchronization of chaotic system is accomplished. The numerical simulation result confirms the effectiveness and the feasibility of the new method based on MATLAB.This method can overcome the noise of channel to disturb chaotic synchronization and the transmission of information, and it not only synchronizes rapidly two chaotic system, but also transmits accurately the information under the noise of channel.