A dynamic configurable sensor for fractional-octaveband underwater acoustic measurements

M.W. Legg, David Matthews

Research output: Chapter in Book/Conference paperConference paper

Abstract

This paper reports on an underwater acoustic sensor used to demonstrate dynamic configurable Field Programmable Analogue Array (FPAA) devices. A single FPAA device was connected to a microcontroller and programmed to sweep through a set of fractional one-third octave filters with centre frequencies from 100 Hz through 20 kHz. Fourth order filters were designed using a cascading topology and approximated using two second order filters available in the FPAA. Sweep timing characteristics were controlled by the microcontroller to allow for settling time and a predetermined estimation uncertainty for each fractional octave band. Laboratory testing compared the filters with the relevant ANSI standard. Field measurements were conducted in the shallow waters of Cockburn Sound. Results of laboratory and field measurements are presented and discussed
Original languageEnglish
Title of host publicationAcoustics 2011: Breaking New Ground
Subtitle of host publicationProceedings of the Annual Conference of the Australian Acoustical Society
EditorsDavid J. Mee, Ian D. M. Hillock
PublisherAustralian Acoustical Society
Pages1-6
ISBN (Electronic)978-0-9757855-8-4
Publication statusPublished - Nov 2011
Externally publishedYes
EventAcoustics 2011: Breaking New Ground - Gold Coast, Australia
Duration: 24 Nov 201124 Nov 2011

Conference

ConferenceAcoustics 2011
CountryAustralia
CityGold Coast
Period24/11/1124/11/11
Other2011 Conference of the Australian Acoustical Society

Fingerprint

Underwater acoustics
Microcontrollers
Sensors
Topology
Acoustic waves
Testing
Water
Uncertainty

Cite this

Legg, M. W., & Matthews, D. (2011). A dynamic configurable sensor for fractional-octaveband underwater acoustic measurements. In D. J. Mee, & I. D. M. Hillock (Eds.), Acoustics 2011: Breaking New Ground: Proceedings of the Annual Conference of the Australian Acoustical Society (pp. 1-6). Australian Acoustical Society.
Legg, M.W. ; Matthews, David. / A dynamic configurable sensor for fractional-octaveband underwater acoustic measurements. Acoustics 2011: Breaking New Ground: Proceedings of the Annual Conference of the Australian Acoustical Society. editor / David J. Mee ; Ian D. M. Hillock. Australian Acoustical Society, 2011. pp. 1-6
@inproceedings{cbb2d001c45b49739b1175c2c20792b1,
title = "A dynamic configurable sensor for fractional-octaveband underwater acoustic measurements",
abstract = "This paper reports on an underwater acoustic sensor used to demonstrate dynamic configurable Field Programmable Analogue Array (FPAA) devices. A single FPAA device was connected to a microcontroller and programmed to sweep through a set of fractional one-third octave filters with centre frequencies from 100 Hz through 20 kHz. Fourth order filters were designed using a cascading topology and approximated using two second order filters available in the FPAA. Sweep timing characteristics were controlled by the microcontroller to allow for settling time and a predetermined estimation uncertainty for each fractional octave band. Laboratory testing compared the filters with the relevant ANSI standard. Field measurements were conducted in the shallow waters of Cockburn Sound. Results of laboratory and field measurements are presented and discussed",
author = "M.W. Legg and David Matthews",
year = "2011",
month = "11",
language = "English",
pages = "1--6",
editor = "Mee, {David J.} and Hillock, {Ian D. M.}",
booktitle = "Acoustics 2011: Breaking New Ground",
publisher = "Australian Acoustical Society",
address = "Australia",

}

Legg, MW & Matthews, D 2011, A dynamic configurable sensor for fractional-octaveband underwater acoustic measurements. in DJ Mee & IDM Hillock (eds), Acoustics 2011: Breaking New Ground: Proceedings of the Annual Conference of the Australian Acoustical Society. Australian Acoustical Society, pp. 1-6, Acoustics 2011, Gold Coast, Australia, 24/11/11.

A dynamic configurable sensor for fractional-octaveband underwater acoustic measurements. / Legg, M.W.; Matthews, David.

Acoustics 2011: Breaking New Ground: Proceedings of the Annual Conference of the Australian Acoustical Society. ed. / David J. Mee; Ian D. M. Hillock. Australian Acoustical Society, 2011. p. 1-6.

Research output: Chapter in Book/Conference paperConference paper

TY - GEN

T1 - A dynamic configurable sensor for fractional-octaveband underwater acoustic measurements

AU - Legg, M.W.

AU - Matthews, David

PY - 2011/11

Y1 - 2011/11

N2 - This paper reports on an underwater acoustic sensor used to demonstrate dynamic configurable Field Programmable Analogue Array (FPAA) devices. A single FPAA device was connected to a microcontroller and programmed to sweep through a set of fractional one-third octave filters with centre frequencies from 100 Hz through 20 kHz. Fourth order filters were designed using a cascading topology and approximated using two second order filters available in the FPAA. Sweep timing characteristics were controlled by the microcontroller to allow for settling time and a predetermined estimation uncertainty for each fractional octave band. Laboratory testing compared the filters with the relevant ANSI standard. Field measurements were conducted in the shallow waters of Cockburn Sound. Results of laboratory and field measurements are presented and discussed

AB - This paper reports on an underwater acoustic sensor used to demonstrate dynamic configurable Field Programmable Analogue Array (FPAA) devices. A single FPAA device was connected to a microcontroller and programmed to sweep through a set of fractional one-third octave filters with centre frequencies from 100 Hz through 20 kHz. Fourth order filters were designed using a cascading topology and approximated using two second order filters available in the FPAA. Sweep timing characteristics were controlled by the microcontroller to allow for settling time and a predetermined estimation uncertainty for each fractional octave band. Laboratory testing compared the filters with the relevant ANSI standard. Field measurements were conducted in the shallow waters of Cockburn Sound. Results of laboratory and field measurements are presented and discussed

UR - https://acoustics.asn.au/conference_proceedings/AAS2011/index.htm

M3 - Conference paper

SP - 1

EP - 6

BT - Acoustics 2011: Breaking New Ground

A2 - Mee, David J.

A2 - Hillock, Ian D. M.

PB - Australian Acoustical Society

ER -

Legg MW, Matthews D. A dynamic configurable sensor for fractional-octaveband underwater acoustic measurements. In Mee DJ, Hillock IDM, editors, Acoustics 2011: Breaking New Ground: Proceedings of the Annual Conference of the Australian Acoustical Society. Australian Acoustical Society. 2011. p. 1-6