A sonar localization using receiver beam profile features

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

1 Citation (Scopus)

Abstract

A localization method for a sonar system equipped with an emitter and two receivers is presented in this paper. The signal reflected from the target is filtered through the receiver beam patterns whose knowledge is used to estimate the direction of the echo. Indeed, the known emitted signal and measurement of its travel time make it possible to compensate for distance and air absorption effects, and to calculate the ratio between the received echo and the original signal at all frequencies. Simulations with two beam patterns were conducted. A monotonic one over orientations was implemented, to show evidence that linearity reduces ambiguity: in this case, the method returns estimates with an error of less than 1.5° with SNR = 50 dB. If a bat's beam pattern is adopted, most of orientations are estimated with an error less than 5°, even when SNR = 15 dB.
LanguageEnglish
Title of host publication2012 IEEE International Ultrasonics Symposium (IUS) Proceedings
PublisherIEEE
Number of pages4
ISBN (Print)9781467345613
DOIs
Publication statusPublished - 2012
Event2012 IEEE International Ultrasonics Symposium (IUS) - Dresden, Germany
Duration: 7 Oct 201210 Oct 2012

Conference

Conference2012 IEEE International Ultrasonics Symposium (IUS)
CountryGermany
CityDresden
Period7/10/1210/10/12

Fingerprint

Sonar
Travel time
Air

Keywords

  • signal to noise ratio
  • sonar
  • acoustic beams
  • acoustics
  • azimuth
  • ear
  • receivers
  • sonar localization
  • receiver beam
  • profile features

Cite this

Guarato, Francesco ; Windmill, James ; Gachagan, Anthony. / A sonar localization using receiver beam profile features. 2012 IEEE International Ultrasonics Symposium (IUS) Proceedings. IEEE, 2012.
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title = "A sonar localization using receiver beam profile features",
abstract = "A localization method for a sonar system equipped with an emitter and two receivers is presented in this paper. The signal reflected from the target is filtered through the receiver beam patterns whose knowledge is used to estimate the direction of the echo. Indeed, the known emitted signal and measurement of its travel time make it possible to compensate for distance and air absorption effects, and to calculate the ratio between the received echo and the original signal at all frequencies. Simulations with two beam patterns were conducted. A monotonic one over orientations was implemented, to show evidence that linearity reduces ambiguity: in this case, the method returns estimates with an error of less than 1.5° with SNR = 50 dB. If a bat's beam pattern is adopted, most of orientations are estimated with an error less than 5°, even when SNR = 15 dB.",
keywords = "signal to noise ratio , sonar, acoustic beams, acoustics, azimuth, ear , receivers, sonar localization, receiver beam , profile features",
author = "Francesco Guarato and James Windmill and Anthony Gachagan",
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Guarato, F, Windmill, J & Gachagan, A 2012, A sonar localization using receiver beam profile features. in 2012 IEEE International Ultrasonics Symposium (IUS) Proceedings. IEEE, 2012 IEEE International Ultrasonics Symposium (IUS), Dresden, Germany, 7/10/12. https://doi.org/10.1109?ULTSYM.2012.0041

A sonar localization using receiver beam profile features. / Guarato, Francesco; Windmill, James; Gachagan, Anthony.

2012 IEEE International Ultrasonics Symposium (IUS) Proceedings. IEEE, 2012.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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T1 - A sonar localization using receiver beam profile features

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N2 - A localization method for a sonar system equipped with an emitter and two receivers is presented in this paper. The signal reflected from the target is filtered through the receiver beam patterns whose knowledge is used to estimate the direction of the echo. Indeed, the known emitted signal and measurement of its travel time make it possible to compensate for distance and air absorption effects, and to calculate the ratio between the received echo and the original signal at all frequencies. Simulations with two beam patterns were conducted. A monotonic one over orientations was implemented, to show evidence that linearity reduces ambiguity: in this case, the method returns estimates with an error of less than 1.5° with SNR = 50 dB. If a bat's beam pattern is adopted, most of orientations are estimated with an error less than 5°, even when SNR = 15 dB.

AB - A localization method for a sonar system equipped with an emitter and two receivers is presented in this paper. The signal reflected from the target is filtered through the receiver beam patterns whose knowledge is used to estimate the direction of the echo. Indeed, the known emitted signal and measurement of its travel time make it possible to compensate for distance and air absorption effects, and to calculate the ratio between the received echo and the original signal at all frequencies. Simulations with two beam patterns were conducted. A monotonic one over orientations was implemented, to show evidence that linearity reduces ambiguity: in this case, the method returns estimates with an error of less than 1.5° with SNR = 50 dB. If a bat's beam pattern is adopted, most of orientations are estimated with an error less than 5°, even when SNR = 15 dB.

KW - signal to noise ratio

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KW - acoustic beams

KW - acoustics

KW - azimuth

KW - ear

KW - receivers

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KW - receiver beam

KW - profile features

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