DocumentCode :
2604399
Title :
Directivity pattern measurement of moving acoustic sources
Author :
Poisson, Franck ; Valière, Jean Christophe ; Coste, Olivier
Author_Institution :
Inst. d´´Acoust. et de Mecanique, Maine Univ., Le Mans, France
fYear :
1996
fDate :
24-26 Jun 1996
Firstpage :
90
Lastpage :
93
Abstract :
Transportation noise reduction is of major concern of environmental research. As regards the railway, high speed creates new noise sources. This paper describes an acoustic moving sources study. Localization methods using microphones arrays provide the position, acoustic power, and the spectrum of the sources. The proposed method computes the directivity pattern of the sources and gives a time-frequency representation of the emitted signal while the sources pass the measurement point. Experiments are carried out to characterize acoustic sources of a high speed train (TGV) in real operating conditions
Keywords :
acoustic arrays; acoustic noise measurement; acoustic signal processing; direction-of-arrival estimation; microphones; noise abatement; railways; spectral analysis; TGV; acoustic power; directivity pattern measurement; emitted signal; environmental topics; experiments; high speed train; localization methods; microphones arrays; moving acoustic sources; noise sources; railway; source position; source spectrum; time-frequency representation; transportation noise reduction; Acoustic arrays; Acoustic measurements; Acoustic noise; Array signal processing; Computational modeling; Microphone arrays; Noise measurement; Noise reduction; Time frequency analysis; Transportation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Statistical Signal and Array Processing, 1996. Proceedings., 8th IEEE Signal Processing Workshop on (Cat. No.96TB10004
Conference_Location :
Corfu
Print_ISBN :
0-8186-7576-4
Type :
conf
DOI :
10.1109/SSAP.1996.534827
Filename :
534827
Link To Document :
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