A New Chaotic Secure Masking Method of Communication System

摘要

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.