| OFDM系统中一种新的导频辅助信道估计算法 |
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| 引用本文： | 王建新,周鹏,花汉兵.OFDM系统中一种新的导频辅助信道估计算法[J].电子与信息学报,2004,26(11):1805-1811. |
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| 作者姓名： | 王建新 周鹏 花汉兵 |
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| 作者单位： | 南京理工大学电光学院,南京,210094;南京理工大学电光学院,南京,210094;南京理工大学电光学院,南京,210094 |
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| 摘 要： | 无线OFDM系统中基于导频辅助的信道估计必须折衷考虑算法性能与算法复杂度。该文提出了一种新的信道估计算法。新算法利用维纳滤波与内插滤波相结合以降低信道估计的运算复杂度。分析和仿真结果显示，新算法在保持获得良好估计性能情况下，有效地降低了信道估计算法的复杂度。
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| 关 键 词： | 正交频分复用 信道估计 维纳滤波 内插滤波 |
| 文章编号： | 1009-5896(2004)11-1805-07 |
| 收稿时间： | 2003-6-15 |
| 修稿时间： | 2003年6月15日 |
A Novel Algorithm for Pilot-Aided Channel Estimation in OFDM Systems |
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| Wang Jian-xin,Zhou Peng,Hua Han-bing.A Novel Algorithm for Pilot-Aided Channel Estimation in OFDM Systems[J].Journal of Electronics & Information Technology,2004,26(11):1805-1811. |
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| Authors: | Wang Jian-xin Zhou Peng Hua Han-bing |
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| Affiliation: | School of Electron. Eng. & Optoelectronic Tech.,NUST Nanjing 210094 China |
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| Abstract: | The tradeoff between performance and complexity must be taken into account in channels estimation algorithm of wireless OFDM systems. This paper proposes a new algorithm for channel estimation in wireless OFDM systems, which aims at reducing the conventional algorithm complexity by using Wiener filtering combined with interpolation filtering.The analysis and simulation results show that the novel algorithm reduces the complexity remarkably with performance slightly degraded. |
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| Keywords: | Orthogonal Frequency Division Multiplexing(OFDM) Channel estimation Wiener filtering Interpolation filtering |
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