Random errors revisited

Finn Jacobsen

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    It is well known that the random errors of sound intensity estimates can be much larger than the theoretical minimum value determined by the BT-product, in particular under reverberant conditions and when there are several sources present. More than ten years ago it was shown that one can predict the random errors of estimates of the sound intensity in, say, one-third octave bands from the power and cross power spectra of the signals from an intensity probe determined with a dual channel FFT analyser. This is not very practical, though. In this paper it is demonstrated that one can predict the random errors from the power and cross power spectra determined with the same spectral resolution as the sound intensity itself.
    Original languageEnglish
    Title of host publicationProceedings of Seventh International Congress on Sound and Vibration
    Place of PublicationAuburn, AL, USA
    PublisherInternational Institute of Acoustics and Vibration
    Publication date2000
    Pages3401-3408
    Publication statusPublished - 2000
    Event7th International Congress on Sound and Vibration - Garmisch-Partenkirchen, Germany
    Duration: 4 Jul 20007 Jul 2000
    Conference number: 7

    Conference

    Conference7th International Congress on Sound and Vibration
    Number7
    CountryGermany
    CityGarmisch-Partenkirchen
    Period04/07/200007/07/2000

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