可在单片机上实现的语音混沌保密通信方法

针对目前数字混沌保密方法中计算量大的不足，提出了一种可在单片机上实现的改进混沌保密方法，并将该方法用于数字语音混沌保密通信。分析了该方法中运用整数运算代替浮点运算降低计算量的原理与过程，着重说明了改进的混沌算法在单片机上的实现。最后，在AT89C51单片机上成功进行了数字语音的混沌保密通信实验并取得了令人满意的结果。

Audio Signal Chaotic Secure Communication in Microcomputer System

To reduce the amount of computation in traditional algorithm, an improved digital chaos algorithm based on single- chip computer is introduced, and the chaotic sequence is applied to the digital voice secure communication. This paper analyzes the principle and process of the digital chaos algorithm in which float point arithmetic is replaced by integeral arithmetic. This dissertation elaborated the implement method of digital chaos algorithm with single-chip computer. At last, single-chip computer AT89C51 experiment of digital voice secure communication is implemented and the results are satisfactory.