The concept and performance of a new digital signal processor for noncontact, high-precision speed and distance measurement of rail-guided vehicles are presented. The measurement procedure is based on the estimation of the time-delay between two signals generated by two optical sensors located a distance L apart. Due to surface irregularities these signals are random, but nearly identical except for a time delay corresponding to the velocity of the vehicle. The high precision and good dynamical properties of the measuring device are achieved by applying a combination of open-loop and closed-loop correlation techniques and sophisticated digital signal postprocessing algorithm.


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    Titel :

    A signal processor for a noncontact speed measurement system


    Weitere Titelangaben:

    Ein Signalprozessor fuer ein beruehrungsloses Geschwindigkeitsmessverfahren


    Beteiligte:
    Bohmann, J. (Autor:in) / Meyr, H. (Autor:in) / Peters, R. (Autor:in) / Spies, G. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1984


    Format / Umfang :

    9 Seiten, 12 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch





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