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低压配电网扩频信号传输特性及通信系统实现对策
引用本文:郭静波,王赞基.低压配电网扩频信号传输特性及通信系统实现对策[J].中国电机工程学报,2001,21(7):78-82.
作者姓名:郭静波  王赞基
作者单位:清华大学电机系,
基金项目:清华大学骨干人才基金资助项目(00017);清华大学重点学科建设项目(082100200);国家电力公司东北分公司资助项目(00394)。
摘    要:配电网的信号传输特性是设计配电网电力线通信系统所必须考虑的重要因素。该文针对低压配电网扩频信号传输特性的测量问题提出一个新方案,讨论分析了低压配电网信号传输的衰减特性、群时延特性与噪声特性,针对其一般传输特性提出了设计扩频通信系统时的补偿对策,现场试验证明所提出的对策非常有效。

关 键 词:低压配电网  扩频通信  信号传输  信道均衡
文章编号:0258-8013(2001)07-0078-05
修稿时间:2000年9月29日

SPREAD SPECTRUM SIGNAL TRANSMISSION OVER LOW VOLTAGE DISTRIBUTION NETWORKS AND REALIZATION COUNTERMEASURES OF THE COMMUNICATION SYSTEM
GUO Jing bo,WANG Zan ji.SPREAD SPECTRUM SIGNAL TRANSMISSION OVER LOW VOLTAGE DISTRIBUTION NETWORKS AND REALIZATION COUNTERMEASURES OF THE COMMUNICATION SYSTEM[J].Proceedings of the CSEE,2001,21(7):78-82.
Authors:GUO Jing bo  WANG Zan ji
Abstract:The characteristics of signal transmission over the power line networks are the key factors to be considered in designing the distribution line communication systems. A novel approach is proposed firstly for the measurement of signal transmission over the networks, then on the basis of great amount measurements, the signal attenuation and group delay as well as noises are discussed and analyzed. Finally the countermeasures against the general characteristics are proposed and the industry test result proves that the countermeasures are really effective.
Keywords:low  voltage distribution networks  spread  spectrum communication  signal transmission  channel equalization
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