| 空间轨道目标ISAR成像方法 |
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| 引用本文： | 黄小红,邱兆坤,许人灿.空间轨道目标ISAR成像方法[J].数据采集与处理,2005,20(2):203-207. |
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| 作者姓名： | 黄小红 邱兆坤 许人灿 |
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| 作者单位： | 国防科技大学自动目标识别国家重点实验室,长沙,410073 |
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| 基金项目： | 国家高技术研究发展计划(“863”计划)(2002AA73140)资助项目。 |
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| 摘 要： | 研究了高速空间目标逆合成孔径雷达(Inverse synthetic aperture radar，ISAR)成像问题；根据空间目标回波模型提出了先进行速度补偿再进行平动补偿的ISAR成像方法。研究了高速运动目标回波模型，针对空间目标回波为线性调频信号的特点，提出采用CLEAN算法的线性调频信号参数估计方法对回波进行速度补偿。最后对自旋和非自旋两类轨道飞行目标成像进行了分析。仿真结果验证了理论分析的正确性和成像方法的有效性。
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| 关 键 词： | 逆合成孔径雷达 运动补偿 CLEAN算法 轨道目标成像 |
| 文章编号： | 1004-9037(2005)02-0203-05 |
| 修稿时间： | 2004年2月23日 |
ISAR Imaging of Space Object in Orbit |
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| HUANG Xiao-hong,QIU Zhao-kun,XU Ren-can.ISAR Imaging of Space Object in Orbit[J].Journal of Data Acquisition & Processing,2005,20(2):203-207. |
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| Authors: | HUANG Xiao-hong QIU Zhao-kun XU Ren-can |
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| Abstract: | Inverse synthetic aperture radar (ISAR) imaging of the space object with hypervelo-city is studied. In order to get an ISAR image of the space object, the velocity compensation must be done before translating motion compensation. Since the echo is a linearly frequency modulated signal, a feasible velocity compensation is conducted based on CLEAN algorithm. Then ISAR imaging of the flying object in orbit is analyzed, including spinning and non-spinning objects. And the spinning effect on imaging is analyzed.Simulation results show that the analysis is correct and the imaging algorithm is effective. |
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| Keywords: | ISAR motion compensation CLEAN algorithm imaging of object in orbit |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
