The simulated indoor pass-by noise measurement system is the measurement tool to evaluate the pass-by noise at the test laboratory, without doing measurement at the field. This measurement system can overcome the limitations of the field measurement, i.e. weather conditions, reproducibility.In this measurement, microphone array is located around the car on chassis dyno. The measured time-domain signals are synchronized with one signal, which is equivalent to the signal recorded in the field representing the moving source effect. By using FRF between indicator and receiver microphones, which are representing source strength and evaluation points correspondingly, source path contribution analysis is performed at 7.5m apart from the centerline of car.In this paper, the measurement and signal processing on top of the theoretical background would be discussed with the measurement example.


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    Title :

    Contribution Analysis of Exterior Noise with Indoor Pass-by Measurement


    Additional title:

    Sae Technical Papers



    Conference:

    SIAT 2011 ; 2011



    Publication date :

    2011-01-19




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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