Beamforming array optimisation and phase averaged sound source mapping on a model wind turbine

Zebb Prime, Con Doolan, Branko Zajamšek

Research output: Contribution to conferencePaper

6 Citations (Scopus)

Abstract

Beam forming is an array processing technique often used to localise sound sources. This paper details the design and testing of a new planar microphone array in the School of Mechanical Engineering at the University of Adelaide which will be used for localising the noise generation from a model wind turbine. The array microphone locations were found using a constrained bi-objective optimisation to find a good compromise between the array resolution, also known as beam width, and the maximum value of spurious lobes, known as the maximum side-lobe level. Aggregate and phase averaged beam forming results of a rotor rig experiment are presented.

Original languageEnglish
Number of pages9
Publication statusPublished - Nov 2014
Externally publishedYes
Event43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control - Melbourne, Australia
Duration: 16 Nov 201419 Nov 2014
Conference number: 43

Conference

Conference43rd International Congress on Noise Control Engineering
Abbreviated titleINTERNOISE 2014
CountryAustralia
CityMelbourne
Period16/11/1419/11/14

Keywords

  • Aeroacoustics
  • Beamforming
  • Sparse array

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