Theoretical study of acoustic circular arrays with tangential pressure gradient sensors


Hoffmann, Falk-Martin and Fazi, Filippo Maria (2015) Theoretical study of acoustic circular arrays with tangential pressure gradient sensors IEEE/ACM Transactions on Audio, Speech, and Language Processing, 23, (11), pp. 1762-1774. (doi:10.1109/TASLP.2015.2449083).

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Description/Abstract

Microphone arrays as a means of sound field acquisition have been the topic of extensive research for more than eight decades now. A number of designs have been suggested, each trying to overcome difficulties that are inherent to either the decomposition of the sound field, the transducers in use or the presence of the array itself. This work presents a theoretical analysis of circular microphone arrays that do not measure the sound pressure but the component of its gradient that is tangential to a given boundary. Its performance is compared to that of a conventional pressure sensor array as a benchmark. The focus of the analysis and subsequent assessment lies on spatial aliasing and performance in the presence of noise.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1109/TASLP.2015.2449083
Subjects: Q Science > QC Physics
Organisations: Acoustics Group
ePrint ID: 379904
Date :
Date Event
8 June 2015Accepted/In Press
June 2015e-pub ahead of print
November 2015Published
Date Deposited: 24 Aug 2015 13:21
Last Modified: 22 Feb 2017 08:29
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/379904

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