A review of acoustic imaging methods using phased microphone arrays

By R. Merino-Martínez, P. Sijtsma, Mirjam Snellen, T. Ahlefeldt, Jérôme Antoni, C. Bahr, D. Blacodon, D. Ernst, A. Finez, S. Funke and 15 more. CEAS Aeronautical Journal, 2019

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Phased microphone arrays have become a well-established tool for performing aeroacoustic measurements in wind tunnels (both open-jet and closed-section), flying aircraft, and engine test beds. This paper provides a review of the most well-known and state-of-the-art acoustic imaging methods and recommendations on when to use them. Several exemplary results showing the performance of most methods in aeroacoustic applications are included. This manuscript provides a general introduction to aeroacoustic measurements for non-experienced microphone-array users as well as a broad overview for general aeroacoustic experts.

Subfields: Aerospace Engineering, Biomedical Engineering, Ecology

View Paper: https://www.semanticscholar.org/paper/c3a4345b524efe03d0ae514474e13be0e45ea6ea