| 基于鲁棒Capon波束形成的探地雷达成像算法 |
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| 引用本文： | 周琳,黄春琳,粟毅.基于鲁棒Capon波束形成的探地雷达成像算法[J].电子与信息学报,2012,34(5):1024-1029. |
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| 作者姓名： | 周琳 黄春琳 粟毅 |
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| 作者单位： | 国防科技大学电子科学与工程学院 长沙410073 |
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| 摘 要： | 传统的探地雷达(Ground Penetrating Radar,GPR)成像算法属于非自适应方法,其成像结果中存在较强的旁瓣和杂波干扰,而自适应方法具有很强的干扰抑制能力。该文利用鲁棒Capon波束形成(Robust CaponBeamforming,RCB)理论,提出了一种自适应的基于RCB的GPR成像算法,不仅考虑了GPR工作场景下电磁波折射现象,同时研究了适用于GPR成像的协方差矩阵构造方法。所提算法可大幅降低成像结果中旁瓣和杂波能量,并在一定程度上提高成像分辨率,实测数据的实验结果证明了算法的有效性。
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| 关 键 词： | 雷达成像 探地雷达 合成孔径 波束形成 |
A Ground Penetrating Radar Imaging Algorithm Based on Robust Capon Beamforming |
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| Zhou Lin
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Huang Chun-lin
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Su Yi.A Ground Penetrating Radar Imaging Algorithm Based on Robust Capon Beamforming[J].Journal of Electronics & Information Technology,2012,34(5):1024-1029. |
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| Authors: | Zhou Lin Huang Chun-lin Su Yi |
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| Affiliation: | Zhou Lin Huang Chun-lin Su Yi(School of Electronic Science and Engineering,National University of Defense Technology,Changsha 410073,China) |
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| Abstract: | The conventional Ground Penetrating Radar(GPR) imaging algorithms are data-independent,which cause lots of interference like side lobes and clutter.However,the data-adaptive methods have remarkable capability of interference suppression.A data-adaptive GPR imaging algorithm based on the theory of Robust Capon Beamforming(RCB) is proposed.The refraction phenomenon of electromagnetic wave is fully considered,and the generation of covariance matrix is also deeply discussed.The sidelobes and clutter can be suppressed dramatically,as well as the imaging resolution can be slightly improved.The experimental results show the validity of the proposed algorithm. |
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| Keywords: | Radar imaging Ground Penetrating Radar(GPR) Synthetic aperture Beamforming |
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