Two perturbation guidance schemes, time-to-go guidance and minimum-distance guidance, are reexamined, in the context of a low-thrust orbit transfer problem. The two schemes, which use different techniques for indexing feedback gains, are shown to be comparable in performance. Both schemes are found to produce terminal state errors which are orders of magnitude smaller than those obtained in several previous studies. Various small modifications or enhancements of the algorithms are thought to account for a portion of the dramatic improvement in results. The problem investigated is a hypothetical earth to Mars orbit transfer, with six state variables, two control variables, and six terminal state constraints.


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    Titel :

    Low-thrust perturbation guidance


    Beteiligte:
    Bauer, T. P. (Autor:in) / Caughey, T. K. (Autor:in) / Wood, L. J. (Autor:in)

    Kongress:

    Astrodynamics Conference ; 1982 ; San Diego, CA


    Erscheinungsdatum :

    01.08.1982


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch




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    Gain indexing schemes for low-thrust perturbation guidance

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    Constrained low-thrust guidance.

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