考虑卫星指令上注的两阶段应急任务规划

Two-phase emergency mission planning with satellite instruction release

多星对地观测应急任务具有突发性和高时效性,不同于常规任务的任务规划,应急任务规划需快速响应任务需求。考虑多星应急任务规划指令上注和数据下传这两个制约应急任务规划的关键因素,设计了基于固定周期的决策统筹规划和基于测控站的局部调整规划相结合的任务规划调度策略。在满足应急任务尽早下传的条件下,提出一种两阶段算法来解决不确定到达的应急任务的动态规划问题。最后通过实验验证了所提算法解决应急任务规划的有效性。

Emergency missions of multi-satellite observation have sudden and uncertain natures,unlike mission planning for regular tasks,emergency mission planning needs to respond quickly to mission requirements.The multi-satellite emergency mission planning considers the key factors that restrict the emergency task planning including instruction release and data download,so a task scheduling mechanism based on fixedcycle scheduling and local-adjustment scheduling is designed.On this basis,under the condition of downloading the emergency mission as soon as possible,a two-stage algorithm is proposed to solve the dynamic problem of emergency mission.Finally,The experimental results indicate the effectiveness of the proposed algorithm to solve the emergency mission planning problem.