| 一种新的宽带波束形成算法 |
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| 引用本文： | 任超,吴嗣亮,王菊,李加琪.一种新的宽带波束形成算法[J].北京理工大学学报,2008,28(5):429-432. |
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| 作者姓名： | 任超 吴嗣亮 王菊 李加琪 |
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| 作者单位： | 北京理工大学,信息科学技术学院电子工程系,北京,100081;北京理工大学,信息科学技术学院电子工程系,北京,100081;北京理工大学,信息科学技术学院电子工程系,北京,100081;北京理工大学,信息科学技术学院电子工程系,北京,100081 |
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| 摘 要： | 基于对角加载思想,针对宽带信号空时处理结构,将空时接收协方差矩阵进行特征值分解,并利用矩阵求逆定理推导出空时结构对角加载值的范围,得到空时结构对角加载波束形成算法的优化方程以及最优权向量的解.仿真结果表明,算法有效地对协方差矩阵估计进行了修正,增强了空时波束形成算法的鲁棒性.
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| 关 键 词： | 空时自适应处理 波束形成 导向矢量 对角加载 |
| 文章编号： | 1001-0645(2008)05-0429-04 |
| 收稿时间： | 2007/9/27 0:00:00 |
| 修稿时间： | 2007年9月27日 |
A Novel Wideband Beamforming Algorithm |
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| REN Chao,WU Si-liang,WANG Ju and LI Jia-qi.A Novel Wideband Beamforming Algorithm[J].Journal of Beijing Institute of Technology(Natural Science Edition),2008,28(5):429-432. |
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| Authors: | REN Chao WU Si-liang WANG Ju and LI Jia-qi |
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| Institution: | Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Department of Electronic Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | Diagonal loading has been a popular approach to improve the robustness of beamforming algorithm.On the basis of diagonal loading,the eigenvalue decomposition of the covariance matrix of receiving data can be calculated.Then the range of diagonal loading value is given according to the matrix inversion theorem.The optimum equation and the weight vector of space-time beamforming algorithm based on diagonal loading is then proposed.The proposed method improves the robustness of space-time adaptive beamforming algorithm effectively.Results of computer simulation verify the efficiency of the method. |
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| Keywords: | space-time adaptive processing(STAP) beamforming steering vector diagonal loading |
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