Enhancements to an advanced ascent guidance algorithm for rocket-powered launch vehicles are described. A general method has been developed for conveniently and efficiently handling the common case of (asymmetric) launch vehicles with unbalanced thrust and aerodynamic moments. The new part of this development concerns the treatment of endo-atmospheric flight. An alternative method for handing the transversality conditions has been developed that eliminates the need for a priori elimination of the constant multipliers that adjoin the terminal state constraints to the performance index. As a result, new constraints can be formulated and implemented with relative ease. The problem of burn-coast-burn trajectory optimization is treated using a modified multiple shooting technique.


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    Title :

    Enhancements to an Atmospheric Ascent Guidance Algorithm


    Contributors:

    Conference:

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


    Publication date :

    2003-06-09


    Type of media :

    Preprint


    Type of material :

    No indication


    Language :

    English





    Enhancements to an Atmospheric Ascent Guidance Algorithm

    Dukeman, Greg / Calise, Anthony | AIAA | 2003


    Closed-Loop Endo-Atmospheric Ascent Guidance

    Lu, Ping / Sun, Hongsheng / Tsai, B. | AIAA | 2002