电讯技术2018，Vol.58Issue(6)：690-695,6.DOI:10.3969/j.issn.1001-893x.2018.06.012
基于稀疏校验的DVB-S2标准LDPC码快速识别
Fast Recognition of DVB-S2 LDPC Codes Based on Sparse Check
解辉 1姚智刚 1陈冠一 1尹园威 1吕萌1
作者信息
- 1. 陆军工程大学石家庄校区 电子与光学工程系,石家庄050003
- 折叠
摘要
Abstract
For the recognition of Digital Video Broadcasting-Satellite 2(DVB-S2) Low-Density Parity–Check( LDPC) codes,a fast recognition algorithm based on sparse check is proposed. Based on the sparse coding matrix,only a few of check codes and information codes have check relations,so the algorithm only needs a few codes. Different coding matrixes are traversed,and the cumulant of the check result is calculat-ed. The LDPC codes can be recognized according to the distribution characteristics of the cumulant. Be-cause only a few codes are needed,the algorithm has less amount of calculation,and can overcome the im-pact of error codes. Simulation result proves the effectiveness of the algorithm with tolerance of above 15% error codes and it can fully meet the detection requirements of the actual system on LDPC codes.关键词
DVB-S2/LDPC码/快速识别/稀疏校验Key words
DVB-S2/LDPC code/fast recognition/sparse check分类
信息技术与安全科学引用本文复制引用
解辉,姚智刚,陈冠一,尹园威,吕萌..基于稀疏校验的DVB-S2标准LDPC码快速识别[J].电讯技术,2018,58(6):690-695,6.
