An airborne Glideslope Computation/Gust Detection System was developed for supporting flight tests of the National Aerospace Laboratory's Variable Stability and Response Airplane (VSRA). The system includes a set of Kalman filters to estimate position and inertial velocity and utilizes signals from the pressure altimeter, and accelerometers and gyros. Glideslope and localizer deviations from a preselected nominal flight path having an arbitrarily assigned glideslope angle, are computed and transmitted to ADI and HSI instead of the standard ILS signals. Gust components as differences of inertial and air speeds are also estimated. Based upon flight test data, estimated horizontal inertial speed is compared with that obtained from Doppler radar, and validity and accuracy of gust estimation are verified by state reconstruction techniques.


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    Title :

    Development and Flight Verification of Airborne Glideslope Computation/Gust Detection System


    Contributors:
    T. Ono (author) / M. Komoda (author) / N. Kawahata (author) / Y. Tsukano (author)

    Publication date :

    1986


    Size :

    26 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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