Koop, Lars (2007) Beam forming methods in microphone array measurements Theory, practice and limitations (Part I and II). In: Experimental Aeroacoustics VKI LS 2007-01. von Karman Institute for Fluid Dynamics. pp. 1-78. ISBN 13 978-2-930389-70-2. ISSN 0377-8312.
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Abstract
The delay-and-sum beamformer as a standard algorithm in microphone array analysis is described in this lecture. The algorithm is described for time-domain and for frequency-domain calculations. The dependency of the microphone array performance on the array design is discussed and a design strategy for arrays is proposed. In an extensive chapter the evaluation of closed and open test-section microphone-array measurements using the delay-and-sum beamformer is described. The introduction of advanced deconvolution algorithms to enhance microphone array results concludes the lecture.
Item URL in elib: | https://elib.dlr.de/45534/ | |||||||||
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Document Type: | Contribution to a Collection | |||||||||
Title: | Beam forming methods in microphone array measurements Theory, practice and limitations (Part I and II) | |||||||||
Authors: |
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Date: | 2007 | |||||||||
Journal or Publication Title: | Experimental Aeroacoustics | |||||||||
Refereed publication: | Yes | |||||||||
Open Access: | No | |||||||||
Gold Open Access: | No | |||||||||
In SCOPUS: | No | |||||||||
In ISI Web of Science: | No | |||||||||
Page Range: | pp. 1-78 | |||||||||
Editors: |
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Publisher: | von Karman Institute for Fluid Dynamics | |||||||||
Series Name: | VKI LS 2007-01 | |||||||||
ISSN: | 0377-8312 | |||||||||
ISBN: | 13 978-2-930389-70-2 | |||||||||
Status: | Published | |||||||||
Keywords: | Microphone array, delay-and-sum beamformer, array performance, open test-section, closed test-section, deconvolution, DAMAS, noise maps, frequency-domain analysis | |||||||||
HGF - Research field: | Aeronautics, Space and Transport (old) | |||||||||
HGF - Program: | Aeronautics | |||||||||
HGF - Program Themes: | Aircraft Research (old) | |||||||||
DLR - Research area: | Aeronautics | |||||||||
DLR - Program: | L AR - Aircraft Research | |||||||||
DLR - Research theme (Project): | L - Flight Physics (old) | |||||||||
Location: | Göttingen | |||||||||
Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > Experimental Methods | |||||||||
Deposited By: | Micknaus, Ilka | |||||||||
Deposited On: | 30 May 2007 | |||||||||
Last Modified: | 27 Apr 2009 13:15 |
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