| 基于电力线信道的OFDM同步算法的仿真 |
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| 引用本文： | 王辉,汪晓岩,胡庆生.基于电力线信道的OFDM同步算法的仿真[J].电力系统通信,2008,29(8). |
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| 作者姓名： | 王辉 汪晓岩 胡庆生 |
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| 作者单位： | 1. 东南大学射频与光电集成电路研究所,江苏,南京,210096
2. 国家电网公司南京自动化研究院,江苏,南京,210003 |
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| 基金项目： | 国家电网科技项目基金资助 |
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| 摘 要： | 针对OFDM在电力线载波通信中的应用,分析研究了SC的OFDM同步算法,并在此基础上提出了一种针对电力线信道的改进的OFDM同步方案。该方案在保证有效符号定位的情况下,扩大了频率偏移的估计范围,改善了归一化频偏在边界点附近的估计失真问题。通过所建立的电力线信道模型和电力线载波通信仿真平台,文章对提出的同步算法进行了仿真,证明了该方案的可行性。
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| 关 键 词： | OFDM 同步 SC算法 电力线载波 |
Simulation of OFDM synchronization algorithm based on power line channel |
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| WANG Hui,WANG Xiao-Yan,HU Qing-sheng.Simulation of OFDM synchronization algorithm based on power line channel[J].Telecommunications for Electric Power System,2008,29(8). |
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| Authors: | WANG Hui WANG Xiao-Yan HU Qing-sheng |
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| Affiliation: | WANG Hui1,WANG Xiao-Yan2,HU Qing-sheng1 |
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| Abstract: | Based on the application of OFDM in power line carrier communication,this paper analyzes the OFDM synchronization algorithm presented by Schmidl and Cox,and discusses an improved OFDM synchronization scheme for power line communication channels.The scheme extends the estimation scope of frequency offset and avoids the estimated distortion at the normalized frequency offset.The simulation on synchronization algorithm is also introduced in the paper. |
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| Keywords: | OFDM synchronization SC algorithm power line carrier |
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