基于正交频分复用技术的低压电力线通信系统模型  

Low voltage power line communication system model based on orthogonal frequency division multiplexing technology

作　　者：曹婷[1] 陈华敏[1] CAO Ting;CHEN Hua-min(Department of Electronics and Electrical Engineering,Nanyang Institute of Technology,Nanyang 473000,China)

机构地区：[1]南阳理工学院电子与电气工程学院

出　　处：《液晶与显示》2019年第9期928-934,共7页Chinese Journal of Liquid Crystals and Displays

基　　金：南阳理工学院转型发展本科专业核心课程改革专项研究(No.HXKC2016030,No.HXKC2016033)~~

摘　　要：针对目前低压电力线通信技术的传输复杂性及外部噪声失真等问题,本文基于正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)调制技术模型,建立了低压电力线信道的通信传输模型,并在MATLAB软件中仿真研究了低压电力线通信系统的传输特性及抗噪声效果。研究结果表明,OFDM技术能够有效提升低压电力线通信系统的传输性能,并显著降低通信系统的噪声影响。该技术具有较好的市场应用前景及竞争力。Aiming at the problems of transmission complexity and external noise distortion of low-voltage power line communication technology,based on the orthogonal frequency division multiplexing(OFDM)modulation technology model,the transmission model of low-voltage power line channel is established.The low-voltage power line communication system is simulated and studied in MATLAB software.The results show that OFDM can effectively improve the performance of low-voltage power line communication system and significantly reduce the noise impact of communication system.The technology has good market application prospects and competitiveness.

关 键 词：低压电力线 正交频分复用调制技术 通信传输 抗噪声 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]