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MIMO-OFDM系统信道估计算法综述
引用本文:王甫莉,阔永红,陈健,刘献玲. MIMO-OFDM系统信道估计算法综述[J]. 电子科技, 2007, 0(2): 73-75
作者姓名:王甫莉  阔永红  陈健  刘献玲
作者单位:西安电子科技大学,通信工程学院,陕西,西安,710071;西安电子科技大学,通信工程学院,陕西,西安,710071;西安电子科技大学,通信工程学院,陕西,西安,710071;西安电子科技大学,通信工程学院,陕西,西安,710071
摘    要:MIMO-OFDM技术是近年来通信信号处理领域的研究热点,无线信道不仅是频率选择性的,而且是时变的,为了获得较高的系统性能,信道估计就显得尤为重要.对MIMO-OFDM系统中现有的信道估计算法进行了综述,重点介绍了基于训练序列的、导频符号的以及盲和半盲信道估计算法.比较了各种算法的优缺点,提出了未来信道估计的发展方向.

关 键 词:多输入多输出  正交频分复用  信道估计
收稿时间:2006-06-08
修稿时间:2006-06-08

Review on the Channel Estimation Algorithms for MIMO-OFDM Systems
Wang Fuli,Kuo Yonghong,Chen Jian,Liu Xianling. Review on the Channel Estimation Algorithms for MIMO-OFDM Systems[J]. Electronic Science and Technology, 2007, 0(2): 73-75
Authors:Wang Fuli  Kuo Yonghong  Chen Jian  Liu Xianling
Abstract:The research of MIMO-OFDM has received much attention in the communication signal processing field. However, for the wireless mobile communication systems, the radio channel is frequency selective and time-varying. In order to improve the performance of MIMO-OFDM systems, it is especially important to estimate the channel accurately. The existing channel estimation algorithms for MIMO-OFDM are reviewed, which focus on training-sequence, pilot-symbols-aided, blind and semi-blind channel estimation. Finally, the algorithms are compared and the trend of development of channel estimation in the future is proposed.
Keywords:MIMO   OFDM   channel estimation
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