This correlation method is intended as a supplement for the well-known noise source identification techniques like signature analysis. The correlation method uses the time delay information of the sound signals detected with a set of microphones positioned near the structure under investigation. A fast Fourier analyser calculates the cross correlograms between all those signals. Those cross correlograms are used to draft a noise source probability map of the analysed structure. The location of the noise sources and their relative importance can easily be deduced out of this probability map. Various experiments proved this method to be very promising. /TRRL/

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  • Corporate Authors:

    Societe Belge des Mecaniciens

    21, rue des Drapiers
    B-1050 Brussels,   Belgium 
  • Authors:
    • Sas, P
  • Publication Date: 1978-6

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Filing Info

  • Accession Number: 00302447
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Dec 29 1979 12:00AM