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基于重访周期对GEO带观测的天基光学空间监视系统进行了设计。首先,在建立重访周期与轨道高度、扫描带宽度关系的基础上,对监视卫星轨道进行了设计;其次,为延长对GEO带的观测时间,通过调整相机指向使其垂直于卫星轨道面,并与卫星本体+Y方向一致,对相机指向进行了设计;最后,基于GEO目标观测时效性要求,对天基光学监视星座进行了设计。仿真结果表明,在自然交会观测模式下,本文设计的监视系统单星4天可实现对GEO带重访一次。与SBV相比,重访周期缩短了1天,4颗卫星组成的天基监视星座每天能够对GEO带重访一次。
The GEO space-based optical space surveillance system was designed based on a revisit cycle. Firstly, based on the relationship between the revisit cycle and the orbital height and the width of the swath, the orbit of the surveillance satellite is designed. Secondly, in order to extend the observation time of the GEO zone, by adjusting the camera orientation so that it is perpendicular to the satellite orbital plane, And is consistent with the + Y direction of the satellite ontology to design the camera pointing. Finally, the design of the space-based optical monitoring constellation is designed based on the timeliness requirements of the GEO target observation. Simulation results show that in the natural intersection observation mode, the monitoring system designed in this paper can achieve a re-visit to the GEO with a single satellite for four days. Compared to SBV, the revisit cycle was shortened by 1 day and space-based surveillance constellations of 4 satellites were able to revisit the GEO daily.