基于OFDM的低压电力线通信系统信道噪声特性分析  

Noise characteristics analysis of OFDM system in low-voltage power line communication channels

作　　者：田新成[1] 侯思祖[1] 王旭[1] 

机构地区：[1]华北电力大学电气与电子工程学院,河北保定071003

出　　处：《华北电力大学学报（自然科学版）》2007年第1期111-114,共4页Journal of North China Electric Power University：Natural Science Edition

基　　金：国家自然科学基金资助项目(60372035).

摘　　要：主要研究了低压电力线信道噪声特性,首先,介绍了电力线通信(PLC),建立了基于低压电力线信道实测特性的OFDM系统的仿真模型,然后,针对不同种类的噪声进行了建模,测量并分析了电力线信道的噪声特性。本文通过测量实验,得出低压电力线信道噪声波形及其特点,通过仿真,得出了低压电力线信道上各种噪声对OFDM系统误码率(BER)性能的影响。The power line communication （PLC） in low-voltage power line channel is introduced. An OFDM system based on measured channel characteristics is suggested. Different kinds of noise characteristics are modeled. The noise characteristics are measured and analyzed, The noise waveform and characteristics of low-voltage power line channel are obtained through measurement experiments. The influence ofpower line channelnoises on bit error （BER） performance of the OFDM system is discussed through simulation.

关 键 词：正交频分复用 电力线通信 信道 噪声 

分 类 号：TN915.853[电子电信—通信与信息系统]