异结构混沌系统同步及其在保密通信中的应用*

根据主动控制思想和Lyapunov稳定性定理，构造主动控制器使得两个异结构的混沌系统在短时间内实现同步，并证明了混沌同步的鲁棒稳定性；利用MATLAB的Simulink技术进行数字仿真，将同步的异结构混沌系统应用到混沌掩盖和混沌参数调制保密通信中。仿真结果表明，异结构混沌系统能够实现稳定的同步，且在混沌掩盖和混沌参数调制保密通信中，有用信号均能有效地在接收端恢复出来。

Synchronization of different structure chaotic systems and its application in secure communication

Designed an active controller based on active control and Lyapunov stability theory to realize two different chaotic systems globally synchronized,also verified the stability of the chaotic synchronization of two systems.Used the technique of Similink based on MATLAB for numerical simulation and used the two synchronized systems in chaotic masking and parameter modulation secure communication. The simulation results show that, the method realizes synchronization of two chaotic systems easily and the useful signal can be recovered from the receiver effectively in the secure communication based on chaotic masking and chaotic parameter modulation.