A Novel Method of Realizing Chaotic Secure Communication by Synchronization of Different Structure
一种通过异结构同步实现混沌保密通信新方法

Based on two different chaotic systems synchronization and parameter modulation, a novel method of realizing chaotic secure communication is proposed in this paper. Information signals are used to modulate some parameter of a chaotic system in the sending terminal, based on Lyapunov stability theory, the proper controllers are designed to realize two different chaotic systems globally synchronization. The appropriate nonlinear filter is designed in the receiving terminal to make the information signals recover effectively, realizing the secure communication. The simulation results show that systems realize synchronization quickly, and the recovered signals are close to the information signals and it can realize secret communication successfully, having strong security and practicability.