Optimize-by-priority on-orbit task real-time planning for agile imaging satellite

Yue, 苗悦 Miao; Feng, 王峰 Wang

doi:10.3788/ope.20182601.0150

Cited by 4 publications

(1 citation statement)

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“…Yanjie Song [13] established a model to solve the problem of autonomous programming for the emergency missions of agile imaging satellites, but the model has a low task completion rate when the number of general tasks is large. Other studies have analyzed the task scheduling problem from the theoretical level, developed the scheduling framework, and proposed corresponding methods, but these algorithms have shortcomings of expensive computing, which is not suitable for small satellites [14][15][16][17][18][19]. In addition, so far, most studies only consider time-dependent constraints, while few consider the resource constraints and the dynamic characteristic of resources on the satellites [20,21].…”

Section: Introductionmentioning

confidence: 99%

An Efficient Task Autonomous Planning Method for Small Satellites

et al. 2018

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Existing on-board planning systems do not apply to small satellites with limited onboard computer capacity and on-board resources. This study aims to investigate the problem of autonomous task planning for small satellites. Based on the analysis of the problem and its constraints, a model of task autonomous planning was implemented. According to the long-cycle task planning requirements, a framework of rolling planning was proposed, including a rolling window and planning unit in the solution, and we proposed an improved genetic algorithm (IGA) for rolling planning. This algorithm categorized each individual based on the compliance of individuals with a time partial order constraint and resource constraint, and designed an appropriate crossover operator and mutation operator for each type of individual. The experimental result showed that the framework and algorithm can not only respond quickly to observation tasks, but can produce effective planning programs to ensure the successful completion of observation tasks.

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