AbstractWith the requirement of the future entry mission, the guidance method not only needs to be robust, reliable and autonomous, but also needs to have the ability to meet the constraints of no-fly zone and waypoint. The paper proposes a predictor-corrector entry guidance method that satisfies the constraints of no-fly zone and waypoint. The trajectory prediction is realized by numerical integration and the corrector is based on fuzzy logic. No-fly zones and waypoints are transformed to a series of reference points. For each reference point, one bank angle reversal is designed. The attack angle, the magnitude and reversal times of bank angle are cooperatively corrected to meet all constraints. The proposed method can guide longitudinal motion and lateral motion synergistically, so it is more robust and flexible. Only one bank angle reversal is needed for a no-fly zone or waypoint, so the reversal times are few. Moreover, without iteration, only a single trajectory prediction is required in a correction cycle, which is favorable for on-board calculation.

    HighlightsThe predictor-corrector entry guidance method is based on fuzzy logic.The method satisfies the constraints of no-fly zones and waypoints.The method is flexible by correcting longitudinal motion and lateral motion synergistically.Only a single bank angle reversal is designed for one no-fly zone or waypoint.The method is favorable for on-board calculation.


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    Titel :

    Predictor-corrector entry guidance with waypoint and no-fly zone constraints


    Beteiligte:
    Ph.D Wang, Tao (Autor:in) / Zhang, Hongbo (Autor:in) / Tang, Guojian (Autor:in)

    Erschienen in:

    Acta Astronautica ; 138 ; 10-18


    Erscheinungsdatum :

    2017-05-12


    Format / Umfang :

    9 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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