| 基于MIMO—OFDM系统的信道估计算法分析 |
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| 引用本文： | 何飞,蒋冬初,李梦醒. 基于MIMO—OFDM系统的信道估计算法分析[J]. 现代电子技术, 2008, 31(21) |
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| 作者姓名： | 何飞 蒋冬初 李梦醒 |
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| 作者单位： | 湖南城市学院,湖南益阳,413000 |
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| 基金项目： | 湖南省教育厅科研项目，湖南城市学院科学研究项目，湖南省益阳市科学研究项目 |
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| 摘 要： | MIMO-OFDM技术是未来无线通信系统的研究热点。信道估计是估计出信道的时域或频域响应,对接收到的数据进行校正与恢复,是实现MIMO-OFDM系统优良的传输性能的重要环节。对MIMO-OFDM系统的多种信道估计算法进行了全面深入地探讨,重点分析和比较了基于LS和MMSE的非盲信道估计算法、盲信道估计算法和半盲信道估计算法,并提出了未来信道估计算法的研究方向。
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| 关 键 词： | MIMO-OFDM 信道估计算法 最小平方 最小均方误差 盲信道估计 半盲信道估计 |
Analysis on the Channel Estimation Algorithms for MIMO-OFDM System |
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| HE Fei,JIANG Dongchu,LI Mengxing. Analysis on the Channel Estimation Algorithms for MIMO-OFDM System[J]. Modern Electronic Technique, 2008, 31(21) |
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| Authors: | HE Fei JIANG Dongchu LI Mengxing |
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| Abstract: | The research of MIMO-OFDM has received much attention in the wireless communication system in the future.The channel estimation which estimates the channel response of time or frequency field,revises and recovers the data received is an important aspect to achieve the high transmission performance for MIMO-OFDM system.A lot of channel estimation algorithms are discussed fully and deeply on MIMO-OFDM systems.Analysis and comparison on no-blind channel estimation algorithms for LS and MMSE,blind channel estimation algorithms and semi-blind channel estimation algorithms are emphasized.The trend of research of channel estimation in the future is proposed. |
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| Keywords: | MIMO-OFDM channel estimation algorithms least square minimum mean square error blind channel estimation semi-blind channel estimation |
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