| 基于PN码导频的FMT信道估计方法 |
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| 引用本文： | 胡兰雨,高振明,朱维红,张灿,孙巧云.基于PN码导频的FMT信道估计方法[J].山东大学学报(理学版),2006,41(1):120-124. |
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| 作者姓名： | 胡兰雨 高振明 朱维红 张灿 孙巧云 |
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| 作者单位： | 山东大学,信息科学与工程学院,山东,济南,250100 |
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| 摘 要： | 针对FMT系统,提出了一种新的基于 PN 码的信道估计方法,既可用于慢变信道,又可用于快变信道.分析了新方法的计算复杂度和估计性能.仿真结果表明,在瑞利衰落信道下新估计方法的误比特性能优于最小二乘估计,与线性最小均方误差估计性能相似,但计算量远小于线性最小均方误差估计.
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| 关 键 词： | 滤波多音调制 信道估计 最小二乘 线性最小均方误差 伪随机码序列 |
| 文章编号： | 1671-9352（2006）01-0120-05 |
| 收稿时间： | 2005-09-14 |
| 修稿时间： | 2005年9月14日 |
Channel estimation based on pseudo-random code pilots in FMT system |
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| HU Lan-yu,GAO Zhen-ming,ZHU Wei-hong,ZHANG Can,SUN Qiao-yun.Channel estimation based on pseudo-random code pilots in FMT system[J].Journal of Shandong University,2006,41(1):120-124. |
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| Authors: | HU Lan-yu GAO Zhen-ming ZHU Wei-hong ZHANG Can SUN Qiao-yun |
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| Institution: | School of Information Science and Engineering, Shandong Univ., Jinan 250100, Shandong, China |
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| Abstract: | This paper provides a new algorithm of channel estimation based on pseudo-random sequence in filtered multitone(FMT) system which is not only suitable to slow time varying channel but to fast one.The complexity and the performance of the new estimation algorithm were discussed theoretically.Simulations show that the bit error rate(BER) of this new algorithm is much better than Least Square(LS) algorithm,approximate to linear minimum mean square error(LMMSE) algorithm,but its complexity is less than LMMSE algorithm. |
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| Keywords: | FMT channel estimation LS LMMSE pseudo-random code sequence |
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