A novel measurement system hass been developed to characterise the radiated electromagnetic interference (EMI) from moving rail vehicles. The system uses multiple spectrum analysers to make a combination of rapidly repeated frequency domain measurements and time domain measurements using single frequency wide bandwidth envelope detection. Using this combination of measurement techniques, the radiated emissions from moving vehicle can be rapidly measured and discrimination can be made between narrowband or broadband, continuous or transient interference. This novel measurement system has been used to perform assessments of the radiated emission from 9 kHz to 2.9 GHz on different type of railway infrastructures (25 kV mainline DC third rail and tramway) and different types of rolling stocks (electric and diesel). Using this system the potential for interference with radiocommunications services and trackside equipment can hence be better understood. A description of the measurement system and a selection of measurement results are presented in this paper. Shortfalls in current measurement techniques and advantages of this hybrid technique are also discussed.


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    Title :

    Assessment of radiated electromagnetic interferences from moving rail vehicule using an innovative measurement system


    Contributors:
    Bozec, D. (author) / Rowell, A.J. (author) / Seller, S.A. (author) / McCormack, L.M. (author) / Marshmann, C.A. (author) / Marvin, A.C. (author)


    Publication date :

    2004


    Size :

    6 Seiten, 4 Bilder, 7 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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