中文说明：应用背景WIMAX 标准是继CDMA200，WCDMA，TD-SCDMA之后于2007年获ITU批准的第四个全球3G标准。该标准采用LDPC码作为其可选的信道编码方案。WIMAX 标准的LDPC码以其优异的纠错性能成为近年来人们研究的热点。关键技术LDPC码的基本译码算法：概率域BP算法、对数域BP算法、最小和算法、偏移最小和算法、归一化最小和算法、TDMP算法、TDMP-NMS算法的基础上，针对基于BP及其简化算法译码收敛慢的不足，采用兼有TDMP算法收敛速度快和NMS算法实现简单的TDMP-NMS算法实现了支持WIMAX标准所有码长和码率LDPC码译码的译码器
English Description：
Application backgroundThe WIMAX standard is the fourth global 3G standard for ITU, WCDMA, CDMA200, and TD-SCDMA in 2007. The standard uses LDPC code as its optional channel encoding program. LDPC code with its excellent error correction performance has become a hot research topic in recent years.Key TechnologyThe basic decoding algorithm of LDPC Codes: the probability BP algorithm, the log domain BP algorithm, the minimum and the algorithm, the minimum and the algorithm, the algorithm, the TDMP-NMS algorithm and the TDMP algorithm. Based on BP and its simplified algorithm, the algorithm has the advantages of fast convergence speed and NMS algorithm. The TDMP-NMS algorithm is implemented to support WIMAX standard code length and code rate LDPC decoder.