| OFDM信道估计的子空间方法 |
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| 引用本文： | 徐海波,杜欢,张振仁.OFDM信道估计的子空间方法[J].电子科技大学学报(社会科学版),2006(5). |
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| 作者姓名： | 徐海波 杜欢 张振仁 |
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| 作者单位： | 西安市第二炮兵工程学院502教研室 西安710025(徐海波，张振仁)，湖北师范学院计算机科学系 湖北黄石435002(杜欢) |
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| 摘 要： | 介绍了OFDM信道盲估计的子空间方法及其研究现状,并对文献6]的算法按照WLAN802.11a的符号格式在存在虚载波及导频的情况下进行了性能仿真,研究了要达到一定的精度,算法应选取的包长及算法对信道SNR的要求。仿真结果表明导频格式会影响算法的收敛,但通过加入不相关的导频,能保证算法的收敛。
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| 关 键 词： | OFDM 信道估计 子空间 WLAN |
Subspace Methods in OFDM Channel Estimation |
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| XU Hai-bo,DU Huan,ZHANG Zhen-ren.Subspace Methods in OFDM Channel Estimation[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2006(5). |
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| Authors: | XU Hai-bo DU Huan ZHANG Zhen-ren |
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| Institution: | XU Hai-bo1,DU Huan2,ZHANG Zhen-ren1 |
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| Abstract: | This paper introduces subspace methods of blind channel estimation in OFDM and its research state. The performance of the algorithm is simulated according to the symbol format of WLAN 802.11a in the exiting of virtual carriers and pilot carriers. The results show that the pilot influences convergence of the algorithm. By adding uncorrelated pilots, the convergence of the algorithm is achieve. In order to achieve a certain precision, the proper packet length and channel SNR is necessary. |
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| Keywords: | OFDM channel estimation subspace WLAN |
| 本文献已被 CNKI 等数据库收录！ |
