A system for determining the location of a moving vehicle with the aid of semipassive signpost reflectors deployed throughout an urban area is presented. The signpost reflectors allow a viable system to be configured since access to electric utility power is not required, thereby permitting a particularly simple and inexpensive installation. The interrogator, mounted at the vehicle, 'reads' the electronic signpost reflector to ascertain basic position information. This information is sent via the vehicle's two-way radio to a central location for control purposes. By using microwave energy at X-band for the interrogation signal, the antennas can utilize a beam shaping pattern although still being physically small. Appropriate antenna patterns can be used to define a very narrow (ribbon-like) reception area allowing very precise location information to be ascertained.


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    Titel :

    An X-band system using semipassive signpost reflectors for automatic location and tracking of vehicles


    Weitere Titelangaben:

    Ein X-Band-System unter Anwendung von halbpassiven Richtungsweiser-Reflektoren fuer automatische Ortung und Kursfuehrung von Fahrzeugen


    Beteiligte:
    Kaplan, G.S. (Autor:in) / Ritzie, A.D. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1977


    Format / Umfang :

    5 Seiten, 13 Bilder, 1 Quelle



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch





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