DWMT系统在TMS320C80上的仿真实现

Implementations of DWMT System on TMS320C80

基于小波变换的离散多音传输系统 (DWMT系统 )是一种抗干扰能力强的高效数据传输系统 ,其主要有两种实现方案 :(1)基于通用可编程 DSP芯片的软件实现方案 ;(2 )基于通用 DSP芯片和专用 VL SI芯片的软硬件结合方案。本文在分析了 DWMT系统的实现结构、运算量以及滤波器优化方法等基础上 ,利用 TMS32 0 C80软件开发系统对基于通用 DSP的软件实现方案进行了仿真 ,并且详细地介绍了该方案的软件流程以及一些提高运算效率的措施。

As a high robustness and efficiency transmission system, a discrete wavelet multi tone transmission system may have two implementation schemes: one is the software scheme based on generally programmable DSP processors, and the other one is the software hardware combined scheme based on DSP processors and specified VLSI chips. Firstly, the architectures, computation consumptions, and filter optimization methods of DWMT systems are analyzed. Secondly, the software scheme based on DSP is simulated with a TMS320C80 software development system. Finally, the detailed software flow charts and some methods used to improve computation efficiency are given.