分布式星载合成孔径雷达顺轨干涉动目标检测

Spaceborne SAR moving targets indication based on along-track interferometry

主要研究分布式小卫星载合成孔径雷达顺轨干涉(SAR-ATI)动目标检测算法,通过建立卫星轨道、编队、地面静止及运动点目标模型,分析星载SAR-ATI动目标检测的流程图,仿真地面目标回波信号并成像。实验证明了在目标径向速度相对雷达平台航向速度不是很大、目标聚焦良好的情况下,ATI动目标检测方法的有效性。

Space-based synthetic aperture radar along-track imerferometry （SAR-ATI） ground moving target indication （GMTI） is researched. By establishing models of the satellite orbit, format, ground static and moving targets, signals and SAR images are simulated according to the processing diagram. The validity of ATI-GMTI is verified when the target＇s radial velocity is not too big relative to the spacecraft and targets are well focused.