Guidance trajectories for coplanar aeroassisted orbital transfer (AOT) from high earth orbit to LEO are presently optimized under the assumption of trajectory control during its endoatmospheric phase by alpha-dependent lift coefficient. Optimal trajectories are first computed by minimizing the total velocity impulse required for AOT; attention is then given to guidance trajectories capable of approximating such key properties of the optimal trajectories as minimum altitude, exit velocity, and exit path inclination, in real time. A switch is made from target-altitude guidance to target path inclination-guidance according to the velocity depletion required for optimum flight.


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    Titel :

    Optimization and guidance of trajectories for coplanar, aeroassisted orbital transfer


    Beteiligte:
    Miele, A. (Autor:in) / Wang, T. (Autor:in) / Lee, W. Y. (Autor:in)


    Erscheinungsdatum :

    1990-09-01



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :