| 主星带编队小卫星顺轨干涉GMTI及性能分析 |
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| 引用本文： | 杨凤凤,梁甸农,刘建平,孙造宇.主星带编队小卫星顺轨干涉GMTI及性能分析[J].电子与信息学报,2006,28(9):1573-1576. |
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| 作者姓名： | 杨凤凤 梁甸农 刘建平 孙造宇 |
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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： | 该文针对主星带编队小卫星雷达系统，讨论了基于修正的顺轨干涉(ATI)原理进行地面动目标检测方法及其性能。利用小面单元模型仿真了一幅带动目标的地面起伏场景图像，验证了该方法的有效性。综合盲速、最小可检测速度、测速误差等指标，给出了适合执行ATI功能的编队构形部分参数，可为编队小卫星GMTI相对绕飞轨道设计提供一定指导。最后，对CartWheel和Pendulum两种典型系统构形进行了GMTI性能仿真分析。
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| 关 键 词： | 编队小卫星 顺轨干涉 地面动目标检测 |
| 文章编号： | 1009-5896（2006）09-1573-04 |
| 收稿时间： | 2005-01-13 |
| 修稿时间： | 2005-10-08 |
ATI-GMTI of Spaceborne Parasitic Radar System |
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| Yang Feng-feng,Liang Dian-nong,Liu Jian-ping,Sun Zao-yu.ATI-GMTI of Spaceborne Parasitic Radar System[J].Journal of Electronics & Information Technology,2006,28(9):1573-1576. |
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| Authors: | Yang Feng-feng Liang Dian-nong Liu Jian-ping Sun Zao-yu |
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| Affiliation: | Dept of Electronic Science and Engineering, National University of Defence Technology, Changsha 410073, China |
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| Abstract: | In this paper, the ground moving target indication based on modified along-track interferometry of spaceborne parasitic radar system is analyzed. The imaging simulation of a piece of fluctuant terrain with a moving target verifies the validity. The appropriate formation fling parameters are presented when considering some performance metrics, such as the blind velocity, the minimum detectable velocity and the velocity precision, Some conclusions are serviceable of orbital design. Finally, GMTI performance of two typical systems, Cartwheel and Pendulum, is analyzed through computer simulation. |
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| Keywords: | Satellite cluster Along track interferometry GMTI |
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