| 基于时域导频跟踪和频域插值的正交频分复用系统信道估计方法 |
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| 引用本文： | 杨勇,孟祥娟.基于时域导频跟踪和频域插值的正交频分复用系统信道估计方法[J].成都信息工程学院学报,2010,25(5):477-480. |
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| 作者姓名： | 杨勇 孟祥娟 |
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| 作者单位： | 西南交通大学信息编码与传输重点实验室,四川,成都,610031 |
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| 摘 要： | 针对下一代无线通信长期演进系统,提出了一种基于时域导频跟踪和频域迭代离散傅里叶变换插值的改进信道估计方法,首先利用导频符号进行信道估计,然后通过导频跟踪和迭代离散傅里叶变换插值获得时域和频域非导频位置的信道估计值。仿真结果表明,基于时域导频跟踪和频域迭代离散傅里叶变换插值的估计方法比传统的方法改善约2dB误比特率性能。
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| 关 键 词： | 信息处理 信道估计 离散傅里叶变换 导频跟踪 长期演进 |
The Channel Estimation Scheme Based on Pilot Tracking in Time Domain and Interpolation in Frequency Domain for OFDM Systems |
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| YANG Yong,MENG Xiang-juan.The Channel Estimation Scheme Based on Pilot Tracking in Time Domain and Interpolation in Frequency Domain for OFDM Systems[J].Journal of Chengdu University of Information Technology,2010,25(5):477-480. |
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| Authors: | YANG Yong MENG Xiang-juan |
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| Institution: | YANG Yong,MENG Xiang-juan(Key Lab of Information Coding & Transmission,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | In order to improve the fast fading channel estimation of LTE systems in the next generation of wireless communication,a channel estimation method with low complexity was proposed.The method is based on the pilot tracking in the time domain and discrete Fourier transform(DFT) iteration interpolation in the frequency domain.The proposed algorithm estimates the channel information with pilots firstly.Then it uses pilot tracking to get the time domain channel information and DFT iteration interpolation to get ... |
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| Keywords: | information processing channel estimation DFT pilot tracking LTE |
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