音频混沌保密无线通信及在DSP上的实现

Audio wireless communication of chaos security and its realization on DSP

针对无线语音通信易被监听等特点,设计了一种基于混沌保密的无线语音通信系统。采用洛伦兹系统,以TMS320C6713DSP和射频收发器为核心,在分析系统的工作原理和工作过程并给出了硬件原理图及软件流程图的基础上,说明了洛伦兹系统在DSP上的实现方法及改进型混沌同步。最后,利用DSP进行了混沌保密的无线语音通信实验并得到了相应的测试结果。

For the characteristic of wireless communication, a wireless voice secure communication system based on digital chaos is introduced.It takes TMS320C6713B DSP and RF transceiver as core using the Lorenz＇s chaotic system.Based on analyzing the working principle and process of the system,the hardware structure chart and software flowchart are also given, this dissertation elaborated the implement method of Lorenz＇s chaotic system with DSP and improved chaos synchronization. Finally, DSP experiment of digital voice secure communication is implemented and the corresponding tested-photos also be given.