| 基于ICA的MIMO系统空时盲均衡算法 |
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| 引用本文： | 包晓蕾.基于ICA的MIMO系统空时盲均衡算法[J].重庆交通学院学报,2009(3). |
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| 作者姓名： | 包晓蕾 |
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| 作者单位： | 上海电子信息职业技术学院通信与信息工程系; |
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| 基金项目： | 上海市优秀青年教师科研专项基金项目(dxz-07002) |
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| 摘 要： | 多输入多输出系统的MMSE均衡中,由于接收端采样大小的限制,对观测信号协方差矩阵的估计和信道的盲辨识误差会严重影响均衡性能,采用独立分量分析作为一种辅助手段改进传统的均衡器,并选择最佳均衡时延优化算法。仿真结果表明,该算法提高了传统算法的鲁棒性,在大大降低计算复杂度的同时改善了均衡性能。
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| 关 键 词： | 多输入多输出 独立分量分析 空时盲均衡 最小均方误差 均衡时延 |
Blind Space-Time Equalization in MIMO System Based on ICA |
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| BAO Xiao-lei.Blind Space-Time Equalization in MIMO System Based on ICA[J].Journal of Chongqing Jiaotong University,2009(3). |
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| Authors: | BAO Xiao-lei |
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| Institution: | BAO Xiao-lei(Department of Communication & Information Engineering,Shanghai Technical Institute of Electronics & Information,Shanghai 201411,China) |
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| Abstract: | In MMSE equalization of Multiple-Input Multiple-Output(MIMO) system,imprecision due to finite sample size in the estimation of the sensor covariance matrix and the channel matrix has a negative impact on the detection of the transmitted data symbols.Independent Component Analysis(ICA) is proposed to refine the conventional equalizer with optimal delay calculation method.The simulation results indicate that this algorithm possesses better robustness,less calculation complexity and more outstanding equalizati... |
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| Keywords: | MIMO(Multiple-Input Multiple-Output) ICA(Independent Component Analysis) blind space-time equalization MMSE equalization delay |
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