Simulation Technology of Spaceborne SAR Reconnaissance Effeciency

Abstract

SAR (Synthetic Aperture Radar) satellites can perform reconnaissance on specific areas in all directions. Generally speaking, the scope of reconnaissance is smaller than that of passive reconnaissance. Therefore, orbit and constellation design are more important. Here we use the maximum coverage gap to measure the reconnaissance efficiency of the SAR satellite constellation and the simulation technology is studied. The results show that the change of orbital inclination has a great influence on the maximum revisit interval. The visible range of SAR satellite has a great influence on the maximum revisit interval, as well as the number of orbital planes. Based on this method, the simulation of the space-borne SAR is carried out. The orbit design and optimization of reconnaissance mission design scheme can provide a convenient and effective support platform for the simulation analysis of space-borne SAR missions.