一种基于优先级的卫星成像任务快速规划流程  

A Rapid Mission Scheduling Process for Satellite Imaging Based on Priority

作　　者：李海玲 党琦 LI Hailing;DANG Qi(College of Computer Science,Xi'an Aeronautical University,Xi'an 710077,China;Key Laboratory For Fault Diagnosis & Maintenance of Spacecraft In Orbit,Xi'an 710043,China)

机构地区：[1]西安航空学院计算机学院,西安710077 [2]在轨航天器故障诊断与维修重点实验室,西安710043

出　　处：《载人航天》2018年第6期821-826,共6页Manned Spaceflight

摘　　要：针对现有卫星成像任务规划算法模型复杂、计算量大、难以满足快速成像任务规划需求的问题,对成像任务规划中的各个过程进行了分析和分解,讨论了点目标可见预报算法及任务规划过程,建立了星历和星下点计算模型,给出了基于目标的重要程度和紧急程度的成像任务优先级确定方法,通过分析无侧摆和有侧摆卫星任务规划的特点,设计了一种基于观测目标优先级的成像任务规划流程,能够通过分布式或并行计算,实现成像任务快速规划。The existing mission scheduling algorithm model for satellite imaging is complex and requires large amount of computation,so it is difficult to satisfy the needs of rapid imaging mission scheduling.The process of imaging mission scheduling was analyzed and decomposed,and the point target visible prediction algorithm and mission scheduling process were discussed.Moreover,the ephemeris and sub-satellite point calculation model was established,and the imaging task priority determination method based on the degree of importance and the degree of urgency of the target was given.By analyzing the characteristics of no-swing and side-swing satellite mission scheduling,a planning process for imaging mission based on the priority of observed targets was designed which could realize rapid imaging mission scheduling through distributed or parallel computation.

关 键 词：成像任务规划 蚁群算法 遗传算法 0/1背包算法 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构] TP391[自动化与计算机技术—计算机科学与技术]