摘要
在理论分析LDPC编码和迭代译码算法的基础上,论述了短环对译码准确性和有效性的影响,提供了短环的检测方法,给出了有效消去周长为4短环的校验矩阵H的生成算法,得到了软件仿真图形。
Based on coding and BP decoding algorithm theory of LDPC, the paper analyzes the influence of short cycle to the veracity and effectives of decoding; demonstrates a detection method of short cycle; presents the oonstruction algorithm of check-matrix without cycle 4 and gains the software simulation graph.
出处
《山西电子技术》
2005年第5期16-17,共2页
Shanxi Electronic Technology
