A Comparison of Frequency-Domain Microphone Array Methods for the Characterization of Rotating Broadband Noise Sources

Ocker C, Herold G, Krömer F, Pannert W, Sarradj E, Becker S (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Acta Acustica United With Acustica Hirzel Verlag (S. Hirzel Verlag)

Book Volume: 105

Pages Range: 66-74

Journal Issue: 1

DOI: 10.3813/AAA.919288

Abstract

The localization and quantification of rotating sound sources is an important challenge in many fields of application. For the motion compensation of rotating sound sources, the two different frequency- domain microphone array methods 'virtual rotating array' and 'modal decomposition of the rotating sound field' are presented and compared to each other. At first, a simulated benchmark case with three discrete rotating broadband sound sources and a non-constant rotational speed is considered. The challenge is the reconstruction of the correct source positions and the source amplitudes. In a second case, a benchmark fan is analyzed to compare the source distribution and source amplitudes of the considered methods. Advantages, disadvantages and limits of the respective methods are shown.

Authors with CRIS profile

Florian Zenger Lehrstuhl für Prozessmaschinen und Anlagentechnik (iPAT) Stefan Becker Lehrstuhl für Prozessmaschinen und Anlagentechnik (iPAT)

Involved external institutions

Technische Universität Berlin DE Germany (DE) Hochschule Aalen DE Germany (DE)

How to cite

APA:

Ocker, C., Herold, G., Krömer, F., Pannert, W., Sarradj, E., & Becker, S. (2019). A Comparison of Frequency-Domain Microphone Array Methods for the Characterization of Rotating Broadband Noise Sources. Acta Acustica United With Acustica, 105(1), 66-74. https://doi.org/10.3813/AAA.919288

MLA:

Ocker, Christof, et al. "A Comparison of Frequency-Domain Microphone Array Methods for the Characterization of Rotating Broadband Noise Sources." Acta Acustica United With Acustica 105.1 (2019): 66-74.

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