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基于InSAR构型的地面运动目标检测与测速方法 被引量:2

Method for ground moving target indication and velocity estimation based on InSAR system
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摘要 提出了一种基于干涉合成孔径雷达构型的地面运动目标检测及测速定位新方法。该方法在高程相位和动目标相位耦合的情况下,充分利用相应像素对及其相邻像素对的相干信息进行高度补偿从而进行动目标参数估计。针对干涉合成孔径雷达(interferometric synthetic aperture radar,InSAR)系统中由于长垂直基线导致杂波自由度随地形起伏大大增加等杂波抑制问题,在处理过程中引入了联合像素法,进一步提高了动目标检测和测速精度。通过仿真验证了该方法的有效性。 This paper presents a new method for ground moving target indication(GMTI) and velocity estimation based on the interferometric synthetic aperture radar(InSAR) system.Under the circumstance of terrain interferometric phase and velocity phase coupling,this method takes advantage of the coherence information of neighboring pixel pairs to compensate terrain interferometric phase.To suppress the increasing clutter degree of freedom with the terrain induced by long across-track baseline,the joint pixel method is adopted to improve the performance of GMTI and the accuracy of velocity estimation.Simulation rusults verify the validity and superiority of the proposed algorithm.
出处 《系统工程与电子技术》 EI CSCD 北大核心 2010年第3期495-498,共4页 Systems Engineering and Electronics
基金 国家自然科学基金(60736009) 教育部长江学者和创新团队支持计划(IRT0645)资助课题
关键词 干涉合成孔径雷达 地面运动目标检测 图像配准 杂波抑制 联合像素 interferometric synthetic aperture radar ground moving target indication image coregistration clutter suppression joint pixel
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共引文献36

同被引文献25

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