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对于三星编队干涉合成孔径雷达(SAR)地形测高,文中利用精确的Hill方程对卫星相对轨道和星间基线进行定量分析。首先,根据沿航向基线和垂直航向基线的约束确定三星编队,并同时干涉测高的工作区间;然后,根据喇叭波束宽度和三星的相对位置关系,正确切换相位同步喇叭,建立主星和两颗副星间相位同步链路,以获取两颗副星SAR成像所需的相位同步信息。其结论可为多星编队干涉SAR系统设计提供有益参考。
For the formation of the Samsung formation interferometric synthetic aperture radar (SAR) topography, the accurate Hill equation is used to quantitatively analyze the satellite relative orbital and inter-satellite baselines. First, the Samsung formation is determined according to the baseline along the heading and the baseline of the vertical course. At the same time, the work space of the Samsung is interfered with. After that, the phase synchronization horn is correctly switched according to the beam width of the horn and the relative position of the Samsung, Interstellar phase synchronization link to obtain the phase synchronization information required for the two satellite SAR imaging. The conclusion can provide a useful reference for the multi-satellite formation SAR system design.