| 一种改进的上行信道估计算法 |
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| 引用本文： | 王华华,吕 南,张 莉.一种改进的上行信道估计算法[J].西安邮电学院学报,2014(1):21-25. |
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| 作者姓名： | 王华华 吕 南 张 莉 |
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| 作者单位： | 重庆邮电大学通信与信息工程学院,重庆400065 |
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| 基金项目： | 国家科技重大专项基金资助项目（2011ZX03001-002） |
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| 摘 要： | 为了提高长期演进(Long Term Evolution,LTE)系统上行信道估计的准确性,同时适当的降低信道估计算法的复杂度,针对上行物理共享信道(Physical Uplink Shared Channel,PUSCH),对基于离散傅里叶变换(Discrete Fourier Transform,DFT)的内插滤波信道估计算法进行改进,采用递归最小二乘法(Recursive LeastSquares,RLS)代替原有的内插滤波。根据Matlab仿真结果,提出的新算法在提高信道估计准确度和降低算法复杂度上可以得到有效的均衡。
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| 关 键 词： | 上行信道 信道估计 离散傅立叶变换 递归最小二乘法 |
An improved algorithm for uplink channel estimation |
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| WANG Huahua,LYU Nan,ZHANG Li.An improved algorithm for uplink channel estimation[J].Journal of Xi'an Institute of Posts and Telecommunications,2014(1):21-25. |
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| Authors: | WANG Huahua LYU Nan ZHANG Li |
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| Affiliation: | WANG Huahua, LYU Nan, ZHANG Li |
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| Abstract: | In order to improve the accuracy of uplink channel estimation and reduce the algorithm complex of it, an improved channel estimation algorithm based on the Interpolation filtering algo- rithm using the Discrete Fourier Transform （DFT） for the Physical uplink shared channel （PUSCH） is proposed in this paper. The new method uses Recursive Least-Squares （RLS） to re- place the method based on traditional interpolation filtering. The matlab simulation results show that the new algorithm can effectively balance improving accuracy and reducing complexity of channel estimation algorithm. |
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| Keywords: | uplink channel channel estimation discrete Fourier transform recursiveleast-squares |
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