基于输出控制的混沌同步保密通信系统

该文提出一种基于混沌系统输出线性化的反馈控制方法，将混沌系统的非线性部分线性化，从而将复杂的非线性混沌系统的同步问题转化为简单的线性混沌系统的稳定性问题，然后通过极点配置理论，用线性化的方法同步两个非线性混沌系统。基于这种同步方法设计出混沌保密通信系统，系统的一条通道用来传输输出信号，另一条通道传输通过遮掩和调制隐藏后的信息信号。仿真结果表明这种保密通信系统是有效的。

A Chaos Synchronization Secure Communication System Based on Output Control

In this paper, based on output linearization feedback control,the nonlinear function of the chaotic system is linearized, then the complex synchronization of the nonlinear chaotic system is converted into the stable problem of the linearization system. Then a nonlinear controller is given by pole assignment. Furthermore based on the scheme above, a system of secure communication is proposed. One channel of the system is output of the chaotic transmitter, the other one transmits the information-bearing signal. Finally a numerical example is used to show the effectiveness of the proposed technique.