混沌反馈调制语音保密通信系统

A Speech and Music Signals Secure Communication SystemBased on Chaotic Feedback Modulation

在硬件实验研究的基础上,建立一种环形蔡氏电路,简述其工作原理及其特点。在此基础上提出用环形蔡氏电路实现混沌反馈调制的一种语音保密通信方案,分析了该方案的同步原理,讨论了发送端和接收端电路参数匹配情况下的同步收敛特性,设计了硬件实验电路,进行了语音混沌保密通信的硬件实验研究,给出了实验结果。

On the basis of hardware experimental research, a loop Chua's circuit is established, and its working principles as well as characteristics are introduced. A scheme for speech and music secure communication based onchaotic feedback modulation is presented. The principle of synchronization is analyzed. The synchronous convergence of circuits parameters matching between transmitter and receiver is discussed. Hardware experimental circuits are designed.Chaotic communication on speech and music signals transmission is demonstrated.Experimental results are given