| 考虑任务聚类的多星观测分阶段调度方法研究 |
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| 引用本文： | 伍国华,马满好,王慧林,邱涤珊.考虑任务聚类的多星观测分阶段调度方法研究[J].宇航学报,2011(10). |
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| 作者姓名： | 伍国华 马满好 王慧林 邱涤珊 |
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| 作者单位： | 国防科技大学信息系统与管理学院; |
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| 基金项目： | 国家973计划项目(61361) |
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| 摘 要： | 单个轨道圈次内星上能量和侧摆次数有限,在卫星观测调度时考虑任务聚类可以提高观测效率。分析了满足用户分辨率需求下多任务聚类的约束条件,并对聚类任务的时间窗口和侧摆角度进行了合理优化。提出了先聚类后调度再修复的分阶段求解策略:首先用团划分聚类算法和启发式插入聚类算法把多星多轨道圈次观测调度问题转化为单星单轨道圈次观测调度问题,然后采用基于时间序无圈有向图的多准则优化卫星调度方法求解单星单轨道圈次调度问题,最后提出一种修复策略进一步优化调度结果。案例仿真表明,提出的方法可行,能够提高卫星的观测效率。
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| 关 键 词： | 卫星观测调度 任务聚类 分阶段调度 修复策略 |
Multi-Phase Scheduling Method with Task Clustering for Satellite Observation |
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| WU Guo-hua,MA Man-hao,WANG Hui-lin,QIU Di-shan.Multi-Phase Scheduling Method with Task Clustering for Satellite Observation[J].Journal of Astronautics,2011(10). |
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| Authors: | WU Guo-hua MA Man-hao WANG Hui-lin QIU Di-shan |
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| Institution: | WU Guo-hua,MA Man-hao,WANG Hui-lin,QIU Di-shan (College of Information Systems and Management,National University of Defense Technology,Changsha 410073,China) |
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| Abstract: | Because the energy and slewing times of a satellite in each orbit are limited,task clustering is considered in satellite observation scheduling to improve observation efficiency.The constraints of task clustering are investigated on the precondition of meeting the client's resolution requirement,then the slewing angle and time window of cluster-tasks are optimized rationally.The resolving procedure is divided into three phases: in the first phase,a clique partitioning clustering algorithm and a heuristic in... |
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| Keywords: | Satellite observation scheduling Task clustering Multi-phase scheduling Repair strategy |
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