一种基于DSP的短波话音压扩器的软件实现方案  

A Kind of Scheme Based DSP to RealizeShort wave VCE by Using Software Completely

作　　者：傅江[1,2] 益晓新[1,2] 

机构地区：[1]通信指挥学院 [2]通信工程学院

出　　处：《电信科学》1999年第5期19-22,共4页Telecommunications Science

摘　　要：本文提出一种基于ＴＭＳ３２０Ｃ２５数字信号处理芯片，采用ＦＦＴ技术完全用软件实现话音压扩功能的方案，其硬件结构较为简单，性能改进较为方便，通过进行对通试验，效果良好。Based on design thoughts of syncompex system,this paper puts forward a kind of scheme,which FFT is adopted to accomplish VCE function by using software completely.Some important problems and algorithms are discussed in detail and an initial system performance deliberation is made by the channel test.

关 键 词：话音压扩 数字信号处理 DSP 短波通信 TMS320C25 

分 类 号：TN911.72[电子电信—通信与信息系统] TN912.3[电子电信—信息与通信工程]