敏捷对地观测卫星自主任务调度方法

Autonomous Task Scheduling Method of Agile Earth Observing Satellites

针对敏捷对地观测卫星自主任务调度问题,提出了自主调度策略,控制自主调度过程,使卫星能够在合适的时机针对合适的任务进行调度。充分考虑了数据回传任务和敏捷卫星特点,建立了星上自主任务调度问题的约束满足模型,提出了基于变邻域搜索的自主任务调度算法。算法利用启发式规则生成初始解作为搜索起点,使用3种邻域结构进行变邻域搜索。通过实验证明了自主调度策略的合理性和自主任务调度算法的有效性。

To solve the problem of autonomous task scheduling of agile earth observing satellites,an autonomous scheduling strategy is proposed to control the process of autonomous scheduling and enable appropriate satellite task scheduling at appropriate time.Based on the characteristics of data haul-back and agile satellite,a constraint satisfaction model of onboard autonomous task scheduling problem is established,and an autonomous task scheduling algorithm based on variable neighborhood search is presented.The algorithm uses heuristic rules to generate the initial solution as initial searching point,and three neighborhood structures are used to conduct variable neighborhood search.Experimental results verify the rationality of autonomous scheduling strategy and the effectiveness of autonomous scheduling algorithm.