Abstract A method to compute optimal collision avoidance maneuvers for short-term encounters is presented. The maneuvers are modeled as multiple-impulses to handle impulsive cases and to approximate finite burn arcs associated either with short alert times or the use of low-thrust propulsion. The maneuver design is formulated as a sequence of convex optimization problems solved in polynomial time by state-of-the-art primal–dual interior-point algorithms. The proposed approach calculates optimal solutions without assumptions about the thrust arc structure and thrust direction. The execution time is fraction of a second for an optimization problem with hundreds of variables and constraints, making it suitable for autonomous calculations.

    Highlights Collision avoidance maneuver for short-term close encounters. Convex multi-impulse formulation for low- and high-thrust maneuvers. Minimization of propellant while enforcing safety constraints. Convergence and computational efficiency compatible with onboard use.


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    Titel :

    Collision avoidance maneuver optimization with a multiple-impulse convex formulation


    Beteiligte:

    Erschienen in:

    Acta Astronautica ; 186 ; 347-362


    Erscheinungsdatum :

    2021-05-31


    Format / Umfang :

    16 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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