| 一种新的MIMO-OFDM系统自适应快时变信道估计算法 |
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| 引用本文： | 龚汉东,王瑞春.一种新的MIMO-OFDM系统自适应快时变信道估计算法[J].国际商务研究,2013,53(7). |
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| 作者姓名： | 龚汉东 王瑞春 |
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| 作者单位： | 深圳信息职业技术学院，广东 深圳 518172;深圳信息职业技术学院，广东 深圳 518172 |
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| 基金项目： | 广东省科技厅产学研结合项目（2011B090400233） |
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| 摘 要： | 为了能够获得较精确的快时变信道估计，利用模糊模型拟合快时变信道，提出了一种
新的信道估计算法。算法采用自适应技术进行导频子载波频域传输函数模型参数的识别，然
后通过插值拟合全部信道的频域传输函数。仿真结果表明，在系统多普勒频移小于0.1的情
况下，信道估计的MSE性能得到改善。
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| 关 键 词： | MIMO-OFDM 自适应信道估计 快时变信道 模糊识别 |
A novel adaptive channel estimation algorithm for MIMO-OFDM systems in fast time-varying channels |
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| GONG Han-dong and WANG Rui-chun.A novel adaptive channel estimation algorithm for MIMO-OFDM systems in fast time-varying channels[J].International Business Research,2013,53(7). |
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| Authors: | GONG Han-dong and WANG Rui-chun |
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| Abstract: | In order to obtain accurate channel estimation in fast time-varying channels, a n
ovel channel estimation algorithm is proposed by using the fuzzy model to track
the fast time-varying channels. Based on the adaptive technique,
the identification for the frequency transmission function model of pilot subcar
riers is carried out. The fitting for the frequency channel transmission functio
n of all subcarriers can be obtained by interpolation. According to the simulati
on results, when the Doppler shift of the systems is less than 0.1, the algorith
m effectively improves the MSE of the channel estimation. |
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| Keywords: | |
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