深空探测学报（中英文）2026，Vol.13Issue(1)：27-37,11.DOI:10.3724/j.issn.2096-9287.2025.20250095
考虑避碰与避障的小天体着陆轨迹快速规划方法
Rapid Trajectory Planning with Collision and Obstacle Avoidance for Landing on Small Celestial Body
摘要
Abstract
A rapid trajectory planning method of collision avoidance and obstacle avoidance is proposed to address the problem of landing on irregular small celestial body.An analytic form of landing trajectory is constructed using Bézier curve,and the collision avoidance and obstacle avoidance schemes are proposed.The guiding point of collision avoidance is set to prevent occlusion from the small celestial body,and the guiding point of obstacle avoidance is set to ensure landing along the normal direction of the landing plane.Considering the geometrical relationship between the lander and the small celestial body,and the monotonicity of height of the guidance point,constraints are established for the parameters of the collision avoidance point and the obstacle avoidance point.Under these constraints,the parameters are rapidly solved with the objective of combustion consumption.Additionally,the minimum landing time is investigated,with the thrust constraint determining the feasible range of landing time.Finally,the proposed trajectory planning method is simulated in a landing scenario of 433 Eros.Results show that the planned trajectory satisfies the constraints of collision avoidance,obstacle avoidance,and thrust control under various initial conditions,while maintaining high computational efficiency.关键词
小天体/着陆轨迹/轨迹规划/障碍规避/贝塞尔曲线Key words
small celestial body/landing trajectory/trajectory planning/obstacle avoidance/Bézier curve分类
航空航天引用本文复制引用
吕畅,梁子璇,朱圣英,葛丹桐..考虑避碰与避障的小天体着陆轨迹快速规划方法[J].深空探测学报（中英文）,2026,13(1):27-37,11.基金项目
国家自然科学基金(U2341214) （U2341214）
