宽带电力线通信技术及前景展望  

Broadband power line communication technologies and their prospects

作　　者：蒋伟[1] 杨俊杰[1] 初凤红[1] 

机构地区：[1]上海电力学院计算机与信息工程学院,上海200090

出　　处：《光通信研究》2009年第2期38-41,共4页Study on Optical Communications

基　　金：上海市教育发展基金会晨光计划资助项目(2007CG66);上海市重点科技攻关计划资助项目(071605125;08160510600);上海市教育委员会科研创新项目(09ZZ185;09YZ337);上海市青年科技启明星计划资助项目(06QA14023)

摘　　要：宽带电力线通信技术是电力线载波通信发展的方向。文章围绕电力线宽带通信的原理,介绍了两种主要用于电力线载波通信的宽带调制技术:扩频技术和正交频分复用(OFDM)技术,分析了其在电力线通信中抗干扰和抗多径效应的原理,比较了这两种技术应用于电力线通信时的优缺点;然后介绍了几款最新的电力线载波芯片;最后,对电力线通信发展现状及市场前景进行了展望。The broadband Power Line Communication （PLC） technology determines the development orientation of the power line carrier communications. On the basis of the principle of the broadband PLC, this paper introduces two broadband modulation technologies that are mainly used in power line carrier communications, i.e. spread spectrum and OFDM, analyzes the principle of their resistance to interference and to multi-path effects and compares their advantages and disadvantages when they are applied in power line communications. Then, it continues to introduce several versions of the latest power line carrier chips and finally describes the current status of PLC and forecasts its market prospect.

关 键 词：正交频分复用 扩频 电力线通信 

分 类 号：TN915[电子电信—通信与信息系统]