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A Review of Array Techniques for Noise Source Location
Technical Paper
2003-01-1691
ISSN: 0148-7191, e-ISSN: 2688-3627
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Language:
English
Abstract
In recent years the increase of computer data processing power has facilitated the use of several multi-channel techniques for noise source location and ranking. These techniques include Spatial Transformation of Sound Fields (STSF) and Inverse Boundary Element Method (IBEM) for reconstruction of the sound field on the source surface from near field measurements and Beamforming for far field measurements. STSF and IBEM are suited for the low to medium frequency range whereas Beamforming is suited for the medium to high frequency range.
The array methods are briefly introduced and a discussion of the advantages and limitations of the different techniques is presented. Benefits of combination of different techniques are also considered and exemplifying measurements are presented.
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Authors
- J.J. Christensen - Brüel & Kjær Sound & Vibration Measurement A/S, Denmark
- J. Hald - Brüel & Kjær Sound & Vibration Measurement A/S, Denmark
- J. Mørkholt - Brüel & Kjær Sound & Vibration Measurement A/S, Denmark
- A. Schuhmacher - Brüel & Kjær Sound & Vibration Measurement A/S, Denmark
- C. Blaabjerg - Brüel & Kjær Sound & Vibration Measurement A/S, Denmark
Topic
Citation
Christensen, J., Hald, J., Mørkholt, J., Schuhmacher, A. et al., "A Review of Array Techniques for Noise Source Location," SAE Technical Paper 2003-01-1691, 2003, https://doi.org/10.4271/2003-01-1691.Also In
SAE 2003 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V112-6; Published: 2004-09-15
Number: V112-6; Published: 2004-09-15
References
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- Hald J. “STSF - a unique technique for scan-based Near-field Acoustic Holography without restrictions on coherence” Brüel & Kjær Technical Review No. 1 1989 1 50
- Hald, J. “Non-stationary STSF” Brüel & Kjær Technical Review No. 1 2000 1 36
- Hald, J. “Time Domain Acoustical Holography and its Applications” Sound and Vibration February 2001
- Johnson, D.G. Dudgeon, D.E. “Array Signal Processing: Concepts and Techniques” Prentice Hall New Jersey 1993
- Hald, J. Christensen, J.J. “A class of optimal broadband phased array geometries designed for easy construction” Proceedings of Inter-Noise 2002
- Schuhmacher, A. Hald, J. Rasmussen, K.B. Hansen, P.C. “Sound source reconstruction using inverse boundary element calculations” J. Acoust. Soc. Am.