无线电台中DS/D-MPSK调制解调器的FPGA实现  

FPGA Realization of DS/D-MPSK Modem of Wireless Radio

作　　者：谭进[1] 陈勇[1] 查光明[1] 

机构地区：[1]电子科技大学,四川成都610054

出　　处：《现代电子技术》2008年第5期71-73,共3页Modern Electronics Technique

摘　　要：提出了一种通用数字DS/D-MPSK调制和解扩解调器的实现方案。该方案采用了成型滤波、直接数字合成(DDS)、正交调制、数字匹配滤波和延时差分解调等技术,直接在中频上进行数字信号处理,不需要进行数字下变频,也不需要进行伪随机码同步捕获和载波提取,简单易行,具有一定的新意和较高的实用价值。本方案已经应用于某军用超短波电台中,验证了方案的正确性和可行性。A realization scheme for universal digital DS/D- MPSK modem is presented, which adopts several advanced technique such as Root- raised cosine filter, direct digital frequency synthesis, quadrature modulatioh, digital matched filter and delay difference demodulation. It processes the signal directly on middle frequency,and doesnr t need digital down conversion, PN code synchronization and carrier recovery. This scheme has been used in a military ultrashort wave radio and obtained a good effect.

关 键 词：DS/D-MPSK DDS 数字匹配滤波器 延时差分解调 

分 类 号：TN76[电子电信—电路与系统]