A scheme to provide redundant sensor data in an automatic control system using the principle of functional redundancy is described. Normally there are three redundant radar altimeters used in the terminal phase of automatic landing of jet transport airplanes. This scheme replaces one of these altimeters with a data processing scheme based on a Kalman filter. The filter is driven by altitude rate and acceleration signals from the air data computer and vertical accelerometer. A special initialization technique employs the two altimeter signals. The feasibility of this scheme is indicated by tests in which data obtained from these several sensors during flight tests are used to drive the functionally redundant altimeter.


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    Titel :

    A Functionally Redundant Altimeter


    Beteiligte:
    Clark, R.N. (Autor:in) / Masreliez, C.J. (Autor:in) / Burrows, J.W. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1976-07-01


    Format / Umfang :

    1752047 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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