A review of acoustic imaging methods using phased microphone arrays: Part of the “Aircraft Noise Generation and Assessment” Special Issue

R. Merino-Martínez, P. Sijtsma, M. Snellen, A. Finez, G. Herold, A. Malgoezar, A. Pereira, E. Sarradj, D. G. Simons, More Authors

Research output: Contribution to journalArticleScientificpeer-review

33 Citations (Scopus)
81 Downloads (Pure)

Abstract

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.

Original languageEnglish
Pages (from-to)197-230
Number of pages34
JournalCEAS Aeronautical Journal
Volume10
Issue number1
DOIs
Publication statusPublished - 13 Mar 2019

Keywords

  • Acoustic imaging
  • Aeroacoustic measurements
  • Beamforming
  • Deconvolution
  • Phased microphone arrays

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