HDTV解调芯片中RS解码器的设计与实现  

Design and Implementation of Reed-Solomon Decoder Applied in HDTV Demodulator

作　　者：吴俊[1] 吴建辉[1] 张萌[1] 李晶晶[1] 

机构地区：[1]东南大学国家专用集成电路系统与工程技术研究中心,南京210096

出　　处：《电子器件》2007年第1期140-143,共4页Chinese Journal of Electron Devices

摘　　要：采用Berlekamp-Massey(BM)算法设计了符合DVB-C标准的RS(204,188)解码器,同时采用SRAM作为缓存和时分复用等方法,减小了电路规模和硬件结构的复杂性,设计的电路能够对每帧数据(204字节)中不多于8个字节的错误进行检查和纠正,并且能达到28.8MHz的工作频率,符合HDTV解调芯片的性能要求.This paper presents an implementation of RS（204,188） decoder for DVD-U, which is aesigneu based on the Berlekamp-Massey algorithm. We have used several methods, such as TDMA, replacing register by SRAM and so on,to minish circuit scale and optimize the architecture. The proposed circuit is capable of correcting up to 8 errors in every frame. Furthermore,it can run up to 28.8MHz, and meets the performance requirement of the HDTV receiver chip.

关 键 词：BM算法 SRAM 时分复用 

分 类 号：TN764[电子电信—电路与系统]