中山大学学报（自然科学版）（中英文）2024，Vol.63Issue(4)：97-106,10.DOI:10.13471/j.cnki.acta.snus.ZR20240025
基于调相机制的航天器碰撞规避策略设计
Design of collision avoidance strategies based on phase modulation mechanism for spacecraft in circular orbit
摘要
Abstract
This paper proposed a collision avoidance maneuver strategy using a continuous thrust phasing mechanism for spacecraft equipped with low-thrust propulsion systems,such as electric propulsion.Firstly,the spacecraft collision probability based on the uncertainty of the initial state using chaotic polynomial expansion was analyzed,which served as an evaluation metric for collision avoidance strategies.Subsequently,an analytical solution for orbital maneuver applicable to low-thrust propulsion was derived.This analytical solution introduces a novel collision avoidance method,which involved fine-tuning the spacecraft's orbital phase to reduce collision probability.Besides,this method could swiftly restore the original orbital phase post-maneuver.Numerical simulations demonstrate that the proposed collision avoidance strategy effectively reduced collision probability within a short time.The simulations also revealed the relation between collision avoidance time,fuel consumption,and thrust acceleration.关键词
碰撞规避策略/碰撞概率/小推力推进系统/解析控制律Key words
collision avoidance strategy/collision probability/low-thrust propulsion system/analytical control law分类
航空航天引用本文复制引用
罗宇飞,孟云鹤..基于调相机制的航天器碰撞规避策略设计[J].中山大学学报（自然科学版）（中英文）,2024,63(4):97-106,10.基金项目
国家自然科学基金(61673390) （61673390）
