基于OFDM的低压电力线衰落信道的研究及应用  

Research and application of reduced signal channel in low voltage electric power line base on OFDM

作　　者：王文星[1] 王文华[2] 杨公训[1] 张榛楠[1] 

机构地区：[1]中国矿业大学(北京)机电与信息工程学院 [2]北京理工大学信息科学技术学院,北京100081

出　　处：《煤炭科学技术》2006年第7期43-45,共3页Coal Science and Technology

摘　　要：结合低压电力线载波通信的特点,阐述了正交频分复用(OFDM)的原理,给出了正交频分复用系统在衰落信道中的通用系统模型。该模型充分考虑了多径传播,以及频率和长度对衰减的影响,使其更具有实用价值。Combined with the features of the carrier wave communication on low voltage electric power line, the paper stated the principle of the OFDM. The paper introduced the orthogonal frequency divided multiplex system to the general system model in reduced signal channel. The model has fully considered the multi way of transition, as well as the frequency and length affected to the reduction in order to have more practical value.

关 键 词：OFDM PLC 井下通信 衰落信道 

分 类 号：TD655[矿业工程—矿山机电]