| 一种基于压缩感知的信道估计算法 |
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| 引用本文： | 焦东立,朱立东. 一种基于压缩感知的信道估计算法[J]. 空间电子技术, 2011, 0(3): 16-19 |
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| 作者姓名： | 焦东立 朱立东 |
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| 作者单位： | 电子科技大学通信抗干扰技术重点实验室; |
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| 基金项目： | 部级基金资助项目(9140A220309090C0201) |
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| 摘 要： | 信道估计是无线通信系统的关键技术之一。文章提出一种基于压缩感知（Compressed Sensing）的信道估计方法,这种方法通过分析信道时延和多普勒域的稀疏度,可以有效降低导频的数量,从而提高系统的频谱利用率。通过与最小均方（Least Square,LS）信道估计方法的对比,可以明显看到导频数量的降低。
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| 关 键 词： | LTE OFDM 信道估计 压缩感知 稀疏重构 |
A Channel Estimation Technique Using CompressedSensing in LTE Systems |
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| JIAO Dong-li,ZHU Li-dong. A Channel Estimation Technique Using CompressedSensing in LTE Systems[J]. Space Electronic Technology, 2011, 0(3): 16-19 |
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| Authors: | JIAO Dong-li ZHU Li-dong |
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| Affiliation: | JIAO Dong-li,ZHU Li-dong(National Key Laboratory of Science and Technology on Communications,UESTC,Chengdu 611731,China) |
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| Abstract: | Channel estimation is one key technology for wireless communication systems.A new channel estimation technique using compressed sensing(CS) is proposed.CS-based channel estimation exploits a channel's delay and Doppler sparseness to reduce the number of pilot signals,and then increase spectral efficiency.Simulation results demonstrate a significant reduction of the number of pilot signals relative to least-square channel estimation. |
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| Keywords: | LTE OFDM Channel estimation Compressed sensing Sparse reconstruction |
| 本文献已被 CNKI 维普 等数据库收录！ |
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