The possibility of maintaining a group of picosatellites in a bounded formation using very low-power electric propulsion (less than 2 W) is presented. A model predictive controller is used to develop a simple control scheme that avoids the need for an online orbit determination system. The control law, verified using a high-fidelity propagator, is capable of maintaining pairs of picosatellites within a range less than 1500 km with an average Δ V of 2.5 m / s per month. To reduce power demands, a combined thruster-based orbit and attitude control system is used. Attitude accuracy is shown to be better than 0.5 deg. A suitable vacuum arc thruster propulsion system is presented, designed specifically for a one-unit CubeSat. The combined attitude-orbit control, the simplicity of the control law, and the proposed propulsion system provide an important advantage for implementation in a picosatellite with extremely limited resources.


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    Titel :

    Simple Orbit and Attitude Control Using Vacuum Arc Thrusters for Picosatellites


    Beteiligte:
    Kronhaus, Igal (Autor:in) / Schilling, Klaus (Autor:in) / Pietzka, Mathias (Autor:in) / Schein, Jochen (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2014-05-12


    Format / Umfang :

    8 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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