基于DMF的软判决信道同步电路设计  

Design of Frame Synchronization in Soft-Decision Channel Based on DMF

作　　者：吴玉成[1] 冯沫[1] 高珊[1] 

机构地区：[1]重庆大学通信工程学院,重庆400044

出　　处：《电路与系统学报》2004年第4期42-44,共3页Journal of Circuits and Systems

基　　金：重庆市科委应用基础基金资助项目(20037961);重庆大学骨干教师基金资助项目

摘　　要：论文针对Turbo译码器设计时软判决信道帧同步问题,采用数字匹配滤波器(DMF)实现软判决信道的帧同步捕获。通过对DMF的几种实现结构的分析,采用倒置型FIR结构,按照CCSDS标准,设计了用于Turbo码编译码系统同步捕获电路。试验表明,设计电路满足Turbo编译码系统帧同步需要,并可在其它软判决信道帧同步设计中得到应用。Digital Matched Filters (DMF) is adopted to achieve frame synchronization for soft-decision channel in Turbo code decoder. The realization architecture of DMF is studied. According to CCSDS standards, the acquisition circuit for Turbo code system is designed. The experimental results indicate that, the circuit designed in this way is suitable for the requirement of Turbo code system and can be used in the frame synchronization of other soft-decision channel.

关 键 词：帧同步 数字匹配滤波器 TURBO码 

分 类 号：TN911[电子电信—通信与信息系统]