| 基于酉变换的改进GSO波束形成器 |
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| 引用本文： | 牟建超,高梅国,白锦良.基于酉变换的改进GSO波束形成器[J].北京理工大学学报,2010,30(7):826-830. |
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| 作者姓名： | 牟建超 高梅国 白锦良 |
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| 作者单位： | 北京理工大学,信息与电子学院,北京,100081;北京理工大学,信息与电子学院,北京,100081;北京理工大学,信息与电子学院,北京,100081 |
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| 摘 要： | 针对传统Gram-Schmidt正交化(GSO)波束形成器对干扰的抑制性能比较差的缺点,提出一种基于酉变换的改进GSO算法.该算法对训练数据进行酉变换,估计变换后数据的协方差矩阵并取其实部,待该实矩阵减去噪声分量后采用GSO算法重构变换后的干扰子空间,将经过同样变换后的静态波束加权矢量向该干扰子空间做正交投影得到自适应加权矢量.计算机仿真结果证明,在干噪比(INR)较高时该算法与基于特征值分解的子空间投影算法的性能相近.
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| 关 键 词： | 自适应波束形成 GS正交投影算法 酉变换 |
| 收稿时间： | 8/1/2009 12:00:00 AM |
Unitary Transform Based on Improved GSO Beamformer |
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| MU Jian-chao,GAO Mei-guo and BAI Jin-liang.Unitary Transform Based on Improved GSO Beamformer[J].Journal of Beijing Institute of Technology(Natural Science Edition),2010,30(7):826-830. |
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| Authors: | MU Jian-chao GAO Mei-guo and BAI Jin-liang |
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| Institution: | MU Jian-chao,GAO Mei-guo,BAI Jin-liang(School of Information , Electronics,Beijing Institute of Technology,Beijing 100081,China) |
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| Abstract: | A unitary transform based improved Gram-Schmidt orthogonalization(UIGS) adaptive beamforming algorithm is proposed to improve the interference mitigation performance gained from conventional Gram-Schmidt orthogonalization(GSO) adaptive beamformer.Firstly,a unitary transform is performed on the training data vectors and a covariance matrix of the transformed signal is constructed from the transformed data.Then the noise component is subtracted from real-part of the covariance matrix and the resultant matrix ... |
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| Keywords: | adaptive beamforming Gram-Schmidt orthogonalization(GSO) unitary transform |
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