軌道デブリに対峙する宇宙機の自律回避ミッション計画
Mission Planning on Autonomous Avoidance for Spacecraft Confronting Orbital Debris
軌道デブリを回避しつつ通常任務を遂行する宇宙機のための、二段階計画と時間緩和計画グラフ（TRPG）ヒューリスティックを用いた自律回避ミッション計画手法を提案し、シミュレーションで有効性を示した。
著者: Chen Xingwen, Wang Tong, Qiu Jianbin, Feng Jianbo
分類: cs.RO, cs.SY, eess.SY
原文アブストラクト
This paper investigates the mission planning problem for spacecraft confronting orbital debris to achieve autonomous avoidance. Firstly, combined with the avoidance requirements, a closed-loop framework of autonomous avoidance for orbital debris is proposed. Under the established model of mission planning, a two-stage planning is proposed to coordinate the conflict between routine tasks and debris avoidance. During the planning for expansion, the temporal constraints for duration actions are handled by the ordering choices. Meanwhile, dynamic resource variables satisfying instantaneous numerical change and continuous linear change are reasoned in the execution of actions. Linear Programming (LP) can solve the bounds of variables in each state, which is used to check the consistency of the interactive constraints on duration and resource. Then, the temporal relaxed planning graph (TRPG) heuristics is rationally developed to guide the plan towards the goal. Finally, the simulation demonstrates that the proposed mission planning strategy can effectively achieve the autonomous debris avoidance of the spacecraft.