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

Journal article


Publication Details

Author(s): Ocker C, Herold G, Krömer F, Pannert W, Sarradj E, Becker S
Journal: Acta Acustica United With Acustica
Publication year: 2019
Volume: 105
Journal issue: 1
Pages range: 66-74
ISSN: 1610-1928


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.


FAU Authors / FAU Editors

Becker, Stefan apl. Prof. Dr.
Lehrstuhl für Prozessmaschinen und Anlagentechnik
Zenger, Florian
Lehrstuhl für Prozessmaschinen und Anlagentechnik


External institutions with authors

Hochschule Aalen
Technische Universität Berlin


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://dx.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.

BibTeX: 

Last updated on 2019-08-03 at 08:53