A New Improved Scheme of Chaotic Masking Secure Communication Based on Lorenz System

This paper reports an improved chaotic masking scheme based on Lorenz system for secure communication. This new scheme overcomes the notable disadvantages of Lorenz system's signal by essentially changing some properties of the chaotic signal in both time and frequency domains. Such changes make the masking signal and the transmitted signal in the communication channel more noise-like, with smaller synchronization errors and well-improved statistics and correlation. This scheme improves the security of transmitted signals in the channel, making it better for chaotic masking secure communication. Experimental simulations are performed with different parameter values, and comparisons between the new and the original schemes are presented and analyzed.

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