摘要
磁盘存储系统的高传输密度导致突发错误增多,QC-LDPC码可以作为磁存储系统的纠错编码。研究了构造QC-LDPC码的方法。搭建了磁记录系统模型,使用EPR4和PR4模拟磁记录信道,探讨了不同码率的QC-LDPC码在两种信道下的纠错性能。仿真结果表明QC-LDPC码在两种信道下具有良好的纠错能力。
The high density disk storage system led to the increasing of error,QC-LDPC could be used as error-correcting codes in disk storage system.The article researches the construction method of the QC-LDPC codes,sets up a magnetic recording system model,uses the EPR4 and PR4 to simulate the magnetic recording channel,and discusses the performance of the different code rates of QC-LDPC codes in two channels.Simulation results show that the QC-LDPC codes have good error-correcting capability in these two channels.
出处
《山西电子技术》
2010年第2期61-63,共3页
Shanxi Electronic Technology
