基于多导体传输线的电力线通信信道特性分析

Channel Characteristics of Scattering Matrix Based Power Line Communication

宽带电力线通信系统采用现有电力电缆传送高频通信信号,其目的是为住户及商业用户提供像因特网一样的高速通信服务。论文首先介绍户外电力线通信网络结构和建立相应的通信信道模型;基于麦克斯韦方程组和多导体传输线理论来分析和阐述多导体传输线特性,推导计算相关主要参数的表达式;然后针对多导体传输线参数计算复杂问题,提出一种新型变换矩阵,用于简化电力线通信信道分析计算;针对电力线通信网络全局分析,提出一种基于散射矩阵分析方法,来分析电力线通信网络。论文旨在通过对多导体传输线以及通信传输网络的分析与计算,实现低压电力线通信信道特性的有效分析,推动电力线通信的实用性进程。

Broadband power line communication（PLC） system uses the exiting electrical cables to transfer high-frequency communication signals.Its aim is to provide residential or business customers with a high-speed access to communication services such as Internet.In this paper,an outdoor power line communication network structure is introduced and the relevant communication channel model is analyzed.Then,the transmission characteristics of multi-conductor transmission line are discussed and analyzed based on Maxwell＇s equations and Transmission Line Theory.The classical primary parameters are computed too.To solve the issue of the computation complexity,we propose a transform matrix to simply the calculation of the power line communication channel.We present a new approach based on Scattering Matrix for the analysis of power line communication networks.This paper is aimed to complete the analysis of the channel characteristics and promote the process of practicability based on the analysis and computation of the multi-conductor transmission line and communication network.