Time-optimal trajectories for the Delilah Unmanned Air Vehicle (UAV) were studied. Delilah is a 400-lb, turbojet-powered decoy carrying active and passive radio-frequency (RF) payloads; its dash speed is 770 kt and its flight ceiling is 30,000 ft. The Pontryagin Minimum Principle was applied to the minimum-time point-to-point maneuvering problem and a new technique was demonstrated, to perform the Jacobi test. The technique is based on a singular value decomposition of the transition matrix and is simpler and more reliable than the old technique of evaluating sub-determinants. Two approximations to the problem, the energy model and the intermediate model, were shown to agree well with the exact solution.


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    Title :

    Optimal Trajectories for an Unmanned Air Vehicle


    Contributors:

    Publication date :

    1990


    Size :

    9 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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