GEOSAR长合成孔径时间弯曲轨迹成像试验

摘要

Geosynchronous orbit SAR (GEO SAR) has wide applications in military and civilian areas because of the advantages of wider swath and shorter revisiting period . Aiming at the complex imaging characteristics of long synthetic aperture time and curved trajectory in GEO SAR ,a ground experiment method was proposed to verify the imaging feasibility . The quantitative analysis curved trajectory with long synthetic aperture time was given , and the experiment plan was put forward . The experiment results show that it can achieve long synthetic aperture time bending trajectory imaging .%地球同步轨道合成孔径雷达（GEO SAR）具有重访周期短，观测范围广等优点，在军事及民用领域具有重要的应用价值。针对GEO SAR长合成孔径时间弯曲轨迹复杂成像特性，首次提出一种地面演示验证方法，对长合成孔径时间弯曲轨迹下成像可行性进行验证。给出长合成孔径时间弯曲轨迹定量分析过程，提出具体试验方案，最后角反射器成像品质评估结果表明可实现长合成孔径时间弯曲轨迹下目标点成像。