| 井下低压电力线多载波通信系统的小波基选择 |
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| 引用本文： | 王文星,高传昌.井下低压电力线多载波通信系统的小波基选择[J].北方交通大学学报,2010(2):133-136. |
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| 作者姓名： | 王文星 高传昌 |
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| 作者单位： | 华北水利水电学院,河南郑州450011 |
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| 摘 要： | 在简要分析我国煤矿配电网的基本结构的基础上,提出基于小波变换的通信系统,该系统采用小波基取代传统的正交频分复用中的余弦函数基的多载波调制技术.通过对6种典型小波基分析比较,结合井下低压电力线的应用条件,给出OFDM通信系统中小波基的选择原则,指出正交性在OFDM系统中具有重要作用.
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| 关 键 词： | 小波基 正交频分复用 低压电力线通信 井下通信 |
Wavelet Base Selection in PLC Communication System in Coal Mine Underground |
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| WANG Wenxing,GAO Chuanchang.Wavelet Base Selection in PLC Communication System in Coal Mine Underground[J].Journal of Northern Jiaotong University,2010(2):133-136. |
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| Authors: | WANG Wenxing GAO Chuanchang |
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| Institution: | (North China University of Water Conservancy and Electric Power,Zhengzhou Henai 450011,China) |
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| Abstract: | The coal mine communication system based on wavelet transformation was proposed in this paper after analysis briefly the structure of coal mine distribution system,The system uses wavelet bases in place of the conventional orthogonal frequency division multiplexing function of the cosine-based multi-carrier modulation technique.compare the six typical wavelet bases in practical application,and combine the underground low-voltage power line application conditions,the selection of wavelet bases when adopt the system of OFDM based on wavelet in coal mine underground was disuccsed in this paper.The important of orthogonality in OFDM system was given. |
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| Keywords: | wavelet transformation orthogonal frequency division multiplexing carrier transmission on power lines coal mine communication |
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