A methodology for on-board planning of sub-orbital entry trajectories is developed. The algorithm is able to generate in a time frame consistent with on-board environment a three-degree-of-freedom (3DOF) feasible entry trajectory, given the boundary conditions and vehicle modeling. This trajectory is then tracked by feedback guidance laws which issue guidance commands. The current trajectory planning algorithm complements the recently developed method for on-board 3DOF entry trajectory generation for orbital missions, and provides full-envelope autonomous adaptive entry guidance capability. The algorithm is validated and verified by extensive high fidelity simulations using a sub-orbital reusable launch vehicle model and difficult mission scenarios including failures and aborts.


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    Title :

    On-Board Entry Trajectory Planning Expanded to Sub-orbital Flight


    Contributors:
    Lu, Ping (author) / Shen, Zuojun (author)

    Conference:

    AIAA Guidance, Navigation, and Control Conference ; 2003 ; Austin, TX


    Publication date :

    2003-01-15


    Type of media :

    Preprint


    Type of material :

    No indication


    Language :

    English






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