A position marker system used in aircraft certification flights is described. The system consists of a ground-based part, viz. a microwave transmitter and a fan-beam antenna, and an airborne part composed of receiving antenna, a crystal-video receiver, and a processor which interfaces the system to the usual recording equipment. Most attention is given to the design of the fan-beam antenna since the performance of the system depends heavily on it. Some measurement results of the antenna are given. For heights less than 1,000 m, the aircraft position can be determined (in one dimension) with the accuracy of a few meters. It is concluded that the signal in space generated by a slotted waveguide antenna, which is fed in the center and used in the difference mode, is suitable as a position marker signal for aircraft.


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    Titel :

    A Slotted Waveguide Antenna as a Marker Beacon for Aircraft


    Beteiligte:
    O. B. M. Pietersen (Autor:in) / F. Klinker (Autor:in)

    Erscheinungsdatum :

    1975


    Format / Umfang :

    15 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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