摘要
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 space-based visible space surveillance system is designed, which is based on the revisit period of the GEO belt. Firstly, the satellite orbital parameters are designed based on relationships among the re- visit period, orbital altitude, and the scan scope. Secondly, in order to extend the observation time of GEO objects, the camera pointing is designed by adjusting the camera pointing perpendicular to the orbital plane along with the ＋ Y body of the satellite. Finally, the surveillance constellation is designed, which fulfills the requirements of revisiting GEO belt. The simulation shows that the surveillance satellite can revisit the GEO belt in four days and the revisit period that is compared with the SBV is shortened in one day. The surveillance constellation consisting of four satellites can revisit the GEO belt in one day.
出处
《航天控制》
CSCD
北大核心
2012年第5期66-70,共5页
Aerospace Control
基金
国家高技术发展计划
关键词
地球同步带
天基光学空间监视
重访周期
系统设计
Geosynchronous earth orbit belt
Space-based visible space surveillance
Revisit period
Systemdesign
