%0 Journal Article
%T Design of decoder for LDPC codes used in CDTTB standard<br>国数字地面电视标准中LDPC码的半并行译码结构设计*
%A LIN Jing-li
%A SUN Gang
%A ZHU Wei-le
%A CHEN Ke-song
%A <br>林竞力
%A 孙罡
%A 朱维乐
%A 陈客松
%J 计算机应用研究
%D 2009
%I 
%X Quasi-cyclic low-density parity-check codes (QC-LDPC) have been adopted as the inner code of channel codes in Chinese digital terrestrial television broadcasting standard (CDTTB).Based on its systematic circulant form, this paper pre-sented a simplified min-sum decoding algorithm based on aposteriori probabilities and its corresponding decoder with semi-parallel architecture. The decoding of LDPC codes at multiple rates can be achieved in one receiver. With fully multiplexing the hardware resources are reduced on the premises that the payload rates are met. The properties of the decoder are verified on FPGA.
%K CDTTB
%K QC-LDPC
%K multiple rates
%K min-sum decoding algorithm
%K semi-parallel
%K FPGA<br>中国数字地面电视广播标准
%K 准循环低密度校验码
%K 多码率
%K 最小和算法
%K 半并行
%K 现场可编程门阵列
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=A9D9BE08CDC44144BE8B5685705D3AED&aid=ABA80AF218BB32F25140D7BC3AE3E0CB&yid=DE12191FBD62783C&vid=96C778EE049EE47D&iid=94C357A881DFC066&sid=2326CE64312F50FD&eid=82D2CD7E370B154A&journal_id=1001-3695&journal_name=计算机应用研究&referenced_num=0&reference_num=9