机动卫星星座对多目标成像任务规划  

Observation mission planning for maneuverable satellite constellations towards multiple targets

作　　者：甘岚 龚胜平[1] GAN Lan;GONG Shengping(School of Aerospace Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学航天航空学院,北京100084

出　　处：《清华大学学报（自然科学版）》2021年第3期240-247,共8页Journal of Tsinghua University(Science and Technology)

基　　金：国家自然科学基金资助项目(11772167,11822205)。

摘　　要：在卫星对地观测任务中,需要研究卫星星座的快速机动及任务规划方法。该文研究了机动卫星星座对多目标的成像任务规划算法。提出了单颗太阳同步圆轨道卫星对单个点目标的可见性分析方法,结合解析方法与数值方法,得到目标的可见性,并给出卫星轨道机动及构型返回策略。在对多目标成像任务规划中,生成变轨策略集,并利用遗传算法求解任务规划问题,提高了计算效率。仿真结果表明:该方法准确性高,提高了星座的观测能力和平均目标观测次数。Satellite constellations require rapid maneuvering and mission planning for Earth observation missions. This paper presents a mission planning algorithm for a constellation of maneuverable satellites in circular Sun-synchronous orbits. A method is developed to determine the visibility of a single target from a single satellite. Analytical and numerical methods are combined to predict the target visibility and determine the maneuvering and return strategies. The observation mission planning towards multiple targets generates a set of maneuvering strategies with a genetic algorithm used to improve the mission planning efficiency. The numerical results show that the algorithm is accurate and improves the satellite constellation observation ability as well as the average number of observed targets.

关 键 词：对地观测卫星 卫星星座 轨道机动 任务规划 

分 类 号：V474.2[航空宇航科学与技术—飞行器设计]