This paper describes two efforts to adapt numerical trajektory optimization of real-time use. A concrete application would be the automated guidance of future military aircraft. Two different approaches are taken to approximate the optimal control: 1. the 'direct approach' based on parametrization of the control functions and 2. the 'indirect approach' leading to a boundary value problem for the state and costate. One main objective of both methods is to reduce the computational effort compared to usual optimization programs. This is successfully accomplished by a simplified solution of the respective ODE-system. In this connection the collocation technique of method 2. is more general than the integration procedure combined with the 'direct approach', which is confined to a certain model of aircraft motion.


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    Title :

    Direct and indirect approach for real-time optimization of flight paths


    Additional title:

    Direkte und indirekte Loesungen fuer die Echtzeit-Optimierung von Flugbahnen


    Contributors:
    Grimm, W. (author) / Hiltmann, P. (author)


    Publication date :

    1987


    Size :

    17 Seiten, 4 Bilder, 8 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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