基于CMMB标准的LDPC译码仿真  

LDPC Decoding Based on CMMB Standard

作　　者：刘帅[1] 何晶[1] 

机构地区：[1]中国传媒大学电路与系统信息工程学院,北京100024

出　　处：《中国传媒大学学报（自然科学版）》2013年第5期46-48,共3页Journal of Communication University of China：Science and Technology

摘　　要：在对LDPC码现有理论研究基础上,阐述了LLR-SPA译码算法的推导,并通过仿真实验,得到了CMMB标准下LLR-SPA译码算法的误码率曲线图。LDPC codes is an error- correcting code with extremely excellent performance, owns to its highly effective decoding algorithm. Also, its decoding is simple, feasible and parallel. It is convenient for hardware implementation. The research on LDPC codes becomes one of the hot spots in channel transmitting field. This article based on the existing theoretical research of LDPC codes, expounds the derived process of LLR - SPA decoding algorithm, and through simulation experiments, gain the bit error rate curve of LLR - SPA based on CMMB standard.

关 键 词：LDPC码 LLR—SPA译码 CMMB 误码率 

分 类 号：TN911.22[电子电信—通信与信息系统]