Abstract This paper presents a differential atmospheric drag-based control algorithm for rendezvous with a non-cooperative target in Low Earth Orbit. The challenge of using a differential input that requires knowledge of physical parameters of the involved spacecraft, is addressed by designing a Lyapunov-based adaptive controller that compensates for the uncertain ballistic coefficient of the target spacecraft as well as the time-varying atmospheric density and velocity of the spacecraft relative to the atmosphere. Numerical simulations using the Schweighart-Sedwick relative dynamics are presented to validate the controller design. Additionally, simulations with more accurate dynamics for each spacecraft along with the NRLMSISE-00 model of atmospheric density are presented to evaluate the performance of the controller under nonlinearities and input saturation.

    Highlights Novel differential drag based estimation of unknown parameters of a spacecraft. Maneuvers with respect to a resident space object that is non cooperative. Example based on a real CubeSat mission.


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    Title :

    Adaptive control for differential drag-based rendezvous maneuvers with an unknown target


    Contributors:

    Published in:

    Acta Astronautica ; 181 ; 733-740


    Publication date :

    2020-03-09


    Size :

    8 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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