| 一种改进的稳健波束形成算法 |
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| 引用本文： | 刘宪军,安红,张扬. 一种改进的稳健波束形成算法[J]. 电子信息对抗技术, 2011, 26(6): 18-21,26 |
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| 作者姓名： | 刘宪军 安红 张扬 |
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| 作者单位： | 1. 电子科技大学电子工程学院,成都,610054
2. 电子信息控制重点实验室,成都,610036 |
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| 摘 要： | 针对期望信号的实际方向与约束方向有误差这一问题,提出了信号子空间投影与非线性约束条件下最小化输出功率相结合的一种改进波束形成算法。该方法能缩小期望信号导向矢量的误差范围,避免导向矢量误差过大引起的波束形成算法性能下降,而且能使收敛速度更快,对信号导向矢量偏差较大的波束形成有很强的稳健性。
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| 关 键 词： | 自适应波束形成 信号导向矢量偏差 特征空间 变步长 |
A Modified Robust Adaptive Beamforming Algorithm |
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| LIU Xian-jun,,AN Hong,ZHANG Yang. A Modified Robust Adaptive Beamforming Algorithm[J]. , 2011, 26(6): 18-21,26 |
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| Authors: | LIU Xian-jun AN Hong ZHANG Yang |
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| Affiliation: | LIU Xian-jun1,2,AN Hong2,ZHANG Yang1(1.School of Electronic Engineering,University of Electronic Science and Technology of China,Chengdu 610054,China,2.Science and Technology on Electronic Information Control Laboratory,Chengdu 610036,China) |
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| Abstract: | To overcome the signal direction mismatches,a modified algorithm for adaptive beamforming is presented,which is based on the eigenspace and non-linearly constrained minimum power algorithm.The proposed algorithm improves the accuracy of steering vector to avoid the descent of performance,offeres faster convergence rate,provides a sufficient robustness against large mismatches. |
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| Keywords: | adaptive beamforming signal steering vector mismatches eigenspace variable step size |
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