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针对多星收发同置分布式干涉合成孔径雷达(InSAR),建立了基线的空间几何模型,基于高程测量(DEM)和动目标检测(GMTI)任务设计卫星编队构型。给出了多星收发同置分布式InSAR的基线参数与构型参数的转换关系,在任务对基线的约束下,以小于某指标的测高和测速误差的轨道运行时间为优化目标,设计构型参数并仿真分析,获得了三种不同编队构型的基线稳定性和测量误差。
For InSAR, a baseline geometry model is established for satellite receiving and transmitting. The satellite formation configuration is designed based on DEM and GMTI tasks. The conversion relation between baseline parameters and configuration parameters of distributed InSAR is given. Under the constraint of task to baseline, the orbital operation time that is less than the height and velocity error of an index is optimized. Type parameters and simulation analysis, obtained three different formations of baseline stability and measurement error.