| 选择性叠加导频信道估计 |
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| 引用本文： | 王华夏,郭一娜,杨勇. 选择性叠加导频信道估计[J]. 通信技术, 2011, 44(6): 46-48 |
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| 作者姓名： | 王华夏 郭一娜 杨勇 |
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| 作者单位： | 太原科技大学电子信息工程学院,太原山西,030024 |
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| 基金项目： | 山西省留学人员管理委员会留学基金，太原科技大学校青年基金 |
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| 摘 要： | 叠加导频信道估计方法是将导频与信息数据直接叠加,不占用专门的频谱和时隙,估计算法灵活多样,能解决导频信道估计系统中频谱利用率低和盲估计中不能实时估计的问题。介绍了叠加导频的MIMO-OFDM系统,采用正交多相序列作为叠加导频,利用导频符号的自相关及导频和接收信号的互相关,提出了一种选择性叠加导频信道估计信道的算法。最后,通过理论分析和计算机仿真,表明该方法在快衰落环境中有良好的性能。
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| 关 键 词： | 频分复用 信道估计 叠加导频 正交多相序列 |
Selective Superimposed Pilot Channel Estimation |
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| WANG Hua-xia,GOU Yi-na,YANG Yong. Selective Superimposed Pilot Channel Estimation[J]. Communications Technology, 2011, 44(6): 46-48 |
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| Authors: | WANG Hua-xia GOU Yi-na YANG Yong |
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| Affiliation: | WANG Hua-xia,GOU Yi-na,YANG Yong(Department of Electronic and Communication,Taiyuan University of Science and Technology Taiyuan Shanxi 030024,China) |
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| Abstract: | The channel estimation based on the superimposed pilot,for its direct addition of pilots to informations symbols without occupation of extra sub-carriers or time slots,could solve the spectrum efficiency in the system based on pilot and real-time estimation in blind estimation system,and thus is widely studied by researehers.This paper describes the superimposed pilot technique in the MIMO-OFDM systems,with orthogonal polyphase sequences as the Superimposed pilot,and by autocorrelation of pilot symbols and ... |
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| Keywords: | OFDM channel estimation superimposed pilot orthogonal polyphase sequence |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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