A comparison between those surveillance systems which use video only and those which use modulated carrier techniques. The paper describes how the multiple carrier method is more suitable for large systems where many cameras are situated in a particular direction. As an illustration, the motorway surveillance system at 'Spaghetti Junction' near Birmingham, is described.


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    Title :

    A motorway surveillance system (CCTV)


    Additional title:

    Ein Verkehrsueberwachungs-System


    Contributors:
    Jackson, I. (author)

    Published in:

    Publication date :

    1975


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English