Trajectory planning and control of spacecraft avoiding dynamic debris swarm

The continuous accumulation of space debris poses a significant threat to spacecraft on orbit. This paper introduces a dynamic trajectory planning and control framework aimed at ensuring the safe traversal of spacecraft through space debris swarms. Initially, a threat model is established, consideri...

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Bibliographic Details
Published in:	Aerospace science and technology Vol. 151; p. 109273
Main Authors:	Chen, Rong, Dong, Monan, Bai, Yuzhu, Zhao, Yong, Chen, Xiaoqian
Format:	Journal Article
Language:	English
Published:	Elsevier Masson SAS 01-08-2024
Subjects:	Collision avoidance Gaussian mixture model Semi-physical simulation Space debris swarm Trajectory planning Trajectory planning Semi-physical simulation Collision avoidance Space debris swarm Gaussian mixture model
Online Access:	Get full text
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Summary:	The continuous accumulation of space debris poses a significant threat to spacecraft on orbit. This paper introduces a dynamic trajectory planning and control framework aimed at ensuring the safe traversal of spacecraft through space debris swarms. Initially, a threat model is established, considering the movement of the debris swarm and the constraints of spacecraft detection range. This model utilizes a dynamically updated, redefined Gaussian mixture model to characterize the threat posed by the debris swarm to spacecraft, with proximity to debris correlating to increased threat levels. Building upon this threat model, four guidance rules are defined, including target guidance, minimal threat, threat threshold, and local path optimization, to facilitate the generation of the shortest collision-free local trajectory for spacecraft. Combining the concept of receding horizon control, an online real-time planning and control framework is formulated for spacecraft navigating through debris swarms. Finally, numerical and semi-physical simulations verify that the proposed framework can stably generate spacecraft safe trajectories and control commands under the threat of numerous dynamic space debris, showing the characteristics of optimal planning trajectory, rapid computation speed and robust safety features.
ISSN:	1270-9638 1626-3219
DOI:	10.1016/j.ast.2024.109273