| 一种新的时分导频信道估计算法 |
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| 引用本文： | 徐霞艳,林家儒,吴伟陵. 一种新的时分导频信道估计算法[J]. 北京邮电大学学报, 2002, 25(1): 68-72. DOI: 10.3969/j.issn.1007-5321.2002.01.013 |
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| 作者姓名： | 徐霞艳 林家儒 吴伟陵 |
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| 作者单位： | 北京邮电大学信息工程学院,北京,100876 |
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| 基金项目： | 国家自然科学基金;69896243; |
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| 摘 要： | 提出了一种适用于时分导频信道的信道估计算法,该算法利用多个相邻时隙中导频符号上的瞬时信道估计进行加权LSM拟合,得到数据符号上的信道估计.仿真结果表明,该算法能较好地跟踪多径衰落信道的变化,采用该算法的相干Rake接收机的性能在较大范围多普勒频移下均比较稳定.
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| 关 键 词： | 码分多址 多径衰落 信道估计 |
| 文章编号： | 1007-5321(2002)01-0068-05 |
| 修稿时间： | 2001-04-02 |
A New Channel Estimation Algorithm for Time-Multiplexed Pilot Channel |
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| XU Xia yan,LIN Jia ru,WU Wei ling. A New Channel Estimation Algorithm for Time-Multiplexed Pilot Channel[J]. Journal of Beijing University of Posts and Telecommunications, 2002, 25(1): 68-72. DOI: 10.3969/j.issn.1007-5321.2002.01.013 |
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| Authors: | XU Xia yan LIN Jia ru WU Wei ling |
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| Abstract: | A new channel estimation algorithm based on time multiplexed pilot channel is proposed. By weighted LSM fitting over multi slot, the complex channel coefficients are estimated. Simulation results show that the new algorithm can track the variation of multipath channel better than several other algorithms, such as linear interpolation. The performance of Rake receiver applying the new channel estimation algorithm is basically stable under a wider range of Doppler frequency. |
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| Keywords: | code division multiple access multipath fading channel estimation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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