| 基于渐消Kalman滤波的MIMO-OFDM信道估计 |
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| 引用本文： | 周郭楠,李莉,王沛.基于渐消Kalman滤波的MIMO-OFDM信道估计[J].上海师范大学学报(自然科学版),2009,38(1). |
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| 作者姓名： | 周郭楠 李莉 王沛 |
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| 作者单位： | 上海师范大学数理学院,上海,200234 |
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| 基金项目： | 总参谋部第五研究所资助项目，数字社区与智能家居实验室学校配套项目 |
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| 摘 要： | 针对快时变信道明显的频率选择性,提出了采用Kalman渐消记忆滤波的估计方法.信道采用AR模型建模,并利用LS算法估计时变信道的衰减因子.仿真表明:快时变环境下,所提算法的估计性能优于LS信道估计和传统的Kalman滤波算法估计.
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| 关 键 词： | 渐消Kalman 信道估计 |
Channel estimation method for MIMO-OFDM systems based on fading kalman filter |
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| ZHOU Guo-nan,LI Li,WANG Pei.Channel estimation method for MIMO-OFDM systems based on fading kalman filter[J].Journal of Shanghai Normal University(Natural Sciences),2009,38(1). |
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| Authors: | ZHOU Guo-nan LI Li WANG Pei |
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| Institution: | College of Mathematics and Sciences;Shanghai Normal University;Shanghai 200234;China |
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| Abstract: | A channel estimation method of time-frequency-selective channels in MIMO-OFDM systems was proposed.This method is based on pilots and fading Kalman filter.The time-varying channel was modeled as an autoregressive(AR) process and the LS(least square) algorithm was adopted to track the time-varying channel fading factors.The simulation results show that this method has better performance comparing with LS algorithm and traditional Kalman estimator. |
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| Keywords: | MIMO-OFDM |
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