| OFDM系统信道估计算法研究及其在低压电力线通信上的应用 |
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| 引用本文： | 耿烜,谢志远,孙军英.OFDM系统信道估计算法研究及其在低压电力线通信上的应用[J].电力系统通信,2005,26(1):18-20,60. |
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| 作者姓名： | 耿烜 谢志远 孙军英 |
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| 作者单位： | 1. 华北电力大学,电子与信息工程学院,河北,保定,071003
2. 河北师范大学,电子系,河北,石家庄,050031 |
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| 摘 要： | 低压电力线通信以其特有的优势将在未来高速数据通信业务中发挥重要的作用，OFDM(正交频分复用)技术具有很强的抗多径能力，非常适合低压电力线通信的多径信道传输。采用相干解调的OFDM系统需要对信道进行估计，以获得信道状态信息(CSI)。文中分析比较了OFDM系统信道估计算法，并根据低压电力线信道的特点，选择了适合于电力线通信的信道估计方法。
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| 关 键 词： | 正交频分复用 信道估计算法 低压电力线通信 |
| 文章编号： | 1005-7641(2005)01-0018-03 |
Research on channel estimation algorithms for OFDM system and its applications in low-voltage power line communication |
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| GENG Xuan,XIE Zhi-yuan,SUN Jun-ying.Research on channel estimation algorithms for OFDM system and its applications in low-voltage power line communication[J].Telecommunications for Electric Power System,2005,26(1):18-20,60. |
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| Authors: | GENG Xuan XIE Zhi-yuan SUN Jun-ying |
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| Affiliation: | GENG Xuan~1,XIE Zhi-yuan~1,SUN Jun-ying~2 |
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| Abstract: | Low-voltage power line communication will play an important role in the future high rate data communication services because of its special access advantages.Orthogonal frequency division multiplexing(OFDM)technology has strong anti-multi-path ability that is very fit for multi-path transmission in low-voltage power line.In coherent demodulation OFDM system,channel estimation requires to get channel state information(CSI).In this paper,some algorithms for estimating channel in OFDM system are analyzed and compared,and the most appropriate one is selected according to power line channel's characteristics. |
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| Keywords: | OFDM channel estimation algorithm low-voltage power line communication |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
