Noise source identification based on measurements of cross-correlation functions

Author

Mas, P. ; Delmotte, P. ; Sas, P.

Author_Institution

Dept. of Mech. Eng., Katholieke Univ., Leuven, Belgium

Volume

1

fYear

1996

fDate

1996

Firstpage

360

Abstract

In this paper an original measurement procedure is proposed to identify the spatial coordinates of broadband sound sources present in a given space. The method yields a visual image of the source distribution. This image is based on statistical source probabilities, derived from a small number of correlation functions. The correlation functions are measured between the microphones of a synthetic circular array. Point sources as well as distributed sources can be localised. The method has been verified by simulations and measurements

Keywords

acoustic correlation; acoustic devices; acoustic generators; acoustic imaging; acoustic noise; acoustic noise measurement; array signal processing; identification; microphones; probability; broadband sound sources; control engineering; correlation function; cross-correlation functions; distributed sources; identification; measurement; microphones; noise source identification; point sources; simulation; source distribution; spatial coordinates; statistical source probabilities; synthetic circular array; time delay; visual image; Acoustic measurements; Acoustic noise; Coordinate measuring machines; Green´s function methods; Impedance; Mechanical variables measurement; Microphone arrays; Noise measurement; Pressure measurement; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 1996. IMTC-96. Conference Proceedings. Quality Measurements: The Indispensable Bridge between Theory and Reality., IEEE

Conference_Location

Brussels

Print_ISBN

0-7803-3312-8

Type

conf

DOI

10.1109/IMTC.1996.507407

Filename

507407