| UWB MIMO穿墙雷达的阵列设计和成像方法 |
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| 引用本文： | 晋良念,欧阳缮,周丽军.UWB MIMO穿墙雷达的阵列设计和成像方法[J].电子与信息学报,2012,34(7):1574-1580. |
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| 作者姓名： | 晋良念 欧阳缮 周丽军 |
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| 作者单位： | 1. 西安电子科技大学电子工程学院西安710071
2. 桂林电子科技大学信息与通信学院桂林541004 |
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| 基金项目： | 国家自然科学基金(61162007);广西无线宽带通信与信号处理重点实验室2011年度主任基金项目(11104,11106);广西教育厅科研立项(201106LX173)资助课题 |
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| 摘 要： | 利用多发多收(MIMO)方式对超宽带(UWB)穿墙成像雷达天线阵列进行稀疏化处理不失为一种很好的选择。该文从成像模型出发，分析了UWB MIMO天线阵的等效接收阵列问题，给出了基于空间卷积理论的UWB MIMO阵列设计方法，仿真验证了方法的有效性和在穿墙成像系统中应用的可行性。此外，提出了相干系数加权稳健Capon波束形成的自适应成像方法，理论分析和实验结果表明该方法能够获得较高的分辨率和图像信噪比。
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| 关 键 词： | 超宽带穿墙雷达成像 UWB MIMO天线阵 阵列设计 相干系数加权 |
| 收稿时间： | 2011-10-28 |
Array Design and Imaging Method for Ultra-wideband Multiple-input Multiple-output Through-the-wall Radar |
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| Jin Liang-nian Ouyang Shan Zhou Li-jun.Array Design and Imaging Method for Ultra-wideband Multiple-input Multiple-output Through-the-wall Radar[J].Journal of Electronics & Information Technology,2012,34(7):1574-1580. |
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| Authors: | Jin Liang-nian Ouyang Shan Zhou Li-jun |
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| Affiliation: | Jin Liang-nian①② Ouyang Shan② Zhou Li-jun① ①(School of Electronic Engineering,Xidian University,Xi’an 710071,China) ②(School of Information and Communication,Guilin University of Electronic Technology,Guilin 541004,China) |
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| Abstract: | The configuration of the Multiple-Input Multiple-Output(MIMO) array is a good choice for a sparse aperture array for Ultra-WideBand(UWB) through the wall imaging radar.According to the imaging model,an equivalent array for UWB MIMO antenna arrary is analyzed and a design approach for UWB MIMO arrary based on the principle of spatial convolution is given.Simulation results demostrate the effectiveness of the design approach and the feasibility of its application to through-the-wall imaging system.In addition,an adaptive imaging method using coherent coefficient weighting robust Capon beamforming is proposed.Both the theoretical analysis and the experimental results show that the proposed method can achieve high resolution and signal-to-noise ratio in the image. |
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| Keywords: | Ultra-WideBand(UWB) through-the-wall radar imaging UWB MIMO antenna array Array design Coherent efficient weighting |
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