This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Combining acoustic imaging techniques to localize and identify sources
Technical Paper
2008-36-0595
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
This paper deals with recent advances in acoustic experimental methods and especially acoustic imaging. The paper covers two areas of interest to acousticians. In the first part, it is explained how near-field acoustic holography (NAH) can be extended with beamforming in the near-field, focalization. The combination of the two methods is providing now a source localization solution with a good spatial resolution over the complete frequency range without the burden of measuring a large number of points as would be required if only NAH was used.
In the second part of the paper, a method is described that goes one step beyond source localization. In this part is explained how source localization techniques in conjunction with artificial excitation of the structure can provide information on the internal sources of the structure.
Authors
Citation
Deblauwe, F., Beguet, B., and Robin, M., "Combining acoustic imaging techniques to localize and identify sources," SAE Technical Paper 2008-36-0595, 2008, https://doi.org/10.4271/2008-36-0595.Also In
References
- Maynard J.D. Williams E.G. Nearfield acoustic holography: theory of the generalized holography and the development of NAH JASA 78 4 October 1985 1985
- Chauray J.L. Béguet B. Leuridan J. Localisation system for acoustic sources euro.noise '95 3 927 932 1995
- Béguet Bernard Chauray Jean-Louis Deblauwe Filip Practical aspects for Acoustical Holography inter.noise '97 3 1301 1306 1997
- Deblauwe Filip Janssens Karl Robin Maxime Exteinding te usability of near-field acoustic holography and beamforming by using focalization ICSV14 Carins Australia 2007
- Beguet Bernard Robin Maxime Combining acoustic Imaging and identification techniques to localise and identify sources Automobile Comfort Conference Le Mans France 15-16 November 2006