半盲信道估计在OFDM低压电力线通信中的应用  

Application of semi-blind channel estimation in OFDM low voltage power line communication

作　　者：马英红[1] 周春丰[1] 刘爱辉[1] 

机构地区：[1]华北电力大学电子与通信工程学院,河北保定071003

出　　处：《电力系统通信》2006年第3期55-58,共4页Telecommunications for Electric Power System

摘　　要：概述了低压电力线统计AR模型的建立方法,并用这种方法得到了实测数据统计结果下的低压电力线信道特性;对LMS和Decision-feedback两种半盲信道估计算法在低压电力线OFDM系统中的性能进行了仿真和分析,二者的性能比较结果表明,LMS算法更适用于低压电力线OFDM通信系统。The paper discusses the foundation of statistical AR model of low voltage power line firstly, and using this method the statistics measuring data are obtained and the low voltage power line characteristics are showed. The characteristics of the two LMS and Decision-feedback semi-blind channel estimation algorithms used on OFDM low voltage power line system are simulated and analyzed, and the performance comparison result shows that LMS algorithm is more applicable in OFDM low voltage power line system.

关 键 词：低压电力线 正交频分复用 半盲估计 

分 类 号：TM73[电气工程—电力系统及自动化] TN913.6[电子电信—通信与信息系统]