| 适用于非合作照射源的无源雷达运动目标成像方法 |
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| 引用本文： | 庄旭昇,汪玲. 适用于非合作照射源的无源雷达运动目标成像方法[J]. 系统工程与电子技术, 2015, 37(3): 560-565. DOI: 10.3969/j.issn.1001-506X.2015.03.13 |
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| 作者姓名： | 庄旭昇 汪玲 |
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| 作者单位： | 南京航空航天大学电子信息工程学院雷达成像与微波光子技术教育部重点实验室，江苏 南京 210016 |
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| 基金项目： | 国家自然科学基金(61001151);航空科学基金(20132052035);中央高校基本科研业务费科研基地创新基金(NJ20140008);国家基础科研(B2520110008);江苏高校优势学科建设工程资助课题 |
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| 摘 要： | 针对运动目标的无源雷达成像，给出一种采用分布式接收孔径的成像方法。首先建立运动目标的回波信号模型，该模型无需任何发射源先验信息。而后基于分布式孔径接收到的回波数据稀少，以目标位置和速度为未知量采用广义似然比检验的方法进行成像，完成成像区域内运动目标的成像和速度估计。最后以WiMAX信号作为机会照射源进行仿真分析，结果表明所用方法能够有效实现无源雷达动目标成像。
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| 关 键 词： | 无源雷达 运动目标 成像 分布式孔径 |
Moving target imaging method for passive radar applicable to non-cooperative illumination sources |
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| ZHUANG Xu-sheng;WANG Ling. Moving target imaging method for passive radar applicable to non-cooperative illumination sources[J]. System Engineering and Electronics, 2015, 37(3): 560-565. DOI: 10.3969/j.issn.1001-506X.2015.03.13 |
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| Authors: | ZHUANG Xu-sheng WANG Ling |
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| Affiliation: | Key Laboratory of Radar Imaging and Microwave Photonics, Ministry of Education, College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | An imaging method that uses the distributed apertures for passive radar imaging of moving targets is presented. First of all, we present the signal model of the moving targets, which does not require any information of the transmitting sources. Then, due to the limited number of received signals obtained via the distributed apertures, we formulate the imaging problem as a generalized likelihood ratio test (GLRT) with unknown target position and velocity and complete the target imaging and velocity estimation by applying the GLRT at each possible position and velocity. Finally, we perform simulations using the worldwide interoperability for microwave access (WiMAX) signals as an illuminator of opportunity and demonstrate the effectiveness of the proposed method. |
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