| 一种能有效接收相干信号的波束形成技术 |
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| 引用本文： | 赵永波,水鹏朗,张守宏.一种能有效接收相干信号的波束形成技术[J].电子学报,2006,34(6):1016-1019. |
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| 作者姓名： | 赵永波 水鹏朗 张守宏 |
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| 作者单位： | 西安电子科技大学雷达信号处理重点实验室,陕西,西安,710071;西安电子科技大学雷达信号处理重点实验室,陕西,西安,710071;西安电子科技大学雷达信号处理重点实验室,陕西,西安,710071 |
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| 基金项目： | 中国科学院资助项目，国防重点实验室基金 |
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| 摘 要： | 在假设事先估计得到不相关干扰信号方向的条件下,本文提出了一种能有效接收相干信号的波束形成方法.该方法首先利用估计得到的不相关干扰信号的方向构造变换矩阵,然后基于变换矩阵估计得到期望信号和相干干扰信号的合成导向矢量,最后利用得到的合成导向矢量和阵列相关矩阵求得波束形成的权矢量.计算机仿真结果证实本文所提方法基本上达到理论上的最优性能,且能快速收敛.
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| 关 键 词： | 波束形成 阵列处理 相干信号 |
| 文章编号： | 0372-2112（2006）06-1016-04 |
| 收稿时间： | 2005-03-30 |
| 修稿时间： | 2005-03-302005-12-16 |
New Beamforming for Coherent Signals in the Presence of Uncorrelated Interferences |
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| ZHAO Yong-bo,SHUI Peng-lang,ZHANG Shou-hong.New Beamforming for Coherent Signals in the Presence of Uncorrelated Interferences[J].Acta Electronica Sinica,2006,34(6):1016-1019. |
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| Authors: | ZHAO Yong-bo SHUI Peng-lang ZHANG Shou-hong |
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| Affiliation: | National Key Lab of Radar Signal Processing,Xidian University,Xi'an,Shaanxi 710071,China |
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| Abstract: | A new three-stage beamformer is proposed for reception of coherent signals with the assumption that the directions-of-arrivals(DOA's) of the uncorrelated interferers have been estimated a priori.First,the estimated DOA's of the uncorrelated interferers are used to construct a transformation matrix.Secondly,the composite vector of the coherent sources is estimated based on the transformation matrix.Finally,using the estimated composite vector and the array correlation matrix,adaptive beamforming is performed.Experimental results show that the proposed beamformer almost achieves the optimum performance and rapidly converges. |
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| Keywords: | beamforming array processing coherent signals |
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