Using linear-optimal estimation and control techniques, digital-adaptive control laws have been designed for a tandem-rotor helicopter which is equipped for fully automatic flight in terminal area operations. Two distinct discrete-time control laws are designed to interface with velocity-command and attitude-command guidance logic, and each incorporates proportional-integral compensation for non-zero-set-point regulation, as well as reduced-order Kalman filters for sensor blending and noise rejection. Adaptation to flight condition is achieved with a novel gain-scheduling method based on correlation and regression analysis. The linear-optimal design approach is found to be a valuable tool in the development of practical multivariable control laws for vehicles which evidence significant coupling and insufficient natural stability.


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    Titel :

    Digital controllers for VTOL aircraft


    Beteiligte:
    Stengel, R. F. (Autor:in) / Broussard, J. R. (Autor:in) / Berry, P. W. (Autor:in)

    Kongress:

    Conference on Decision and Control ; 1976 ; Clearwater, FL, US


    Erscheinungsdatum :

    01.01.1976


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch




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