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Updated: Jun 17, 2026

An Automated System for Sound Localization Testing in Hearing-Impaired Listeners
07:52

An Automated System for Sound Localization Testing in Hearing-Impaired Listeners

Published on: March 13, 2026

Broadband source localization using horizontal-beam acoustic intensity striations.

Altan Turgut1, Marshall Orr, Daniel Rouseff

  • 1Acoustics Division, Naval Research Laboratory, Washington, DC 20375, USA. turgut@wave.nrl.navy.mil

The Journal of the Acoustical Society of America
|January 12, 2010
PubMed
Summary
This summary is machine-generated.

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This study uses waveguide invariant theory and Hough transforms to pinpoint moving ships using acoustic data. The method accurately estimates source location and waveguide parameters in shallow waters.

Area of Science:

  • Underwater acoustics
  • Oceanography
  • Signal processing

Background:

  • Ship noise localization is crucial for maritime surveillance and environmental monitoring.
  • Horizontal Line Array (HLA) beamforming offers potential for acoustic source localization.
  • Understanding sound propagation in shallow waters, influenced by bathymetry, is complex.

Purpose of the Study:

  • To apply waveguide invariant theory to HLA beamformer output for localizing moving broadband noise sources.
  • To estimate the waveguide invariant parameter 'beta' and source range/speed ratio using acoustic intensity striation patterns.
  • To validate the localization technique using data from multiple receivers and HLA beam-time records.

Main Methods:

  • Utilized waveguide invariant theory applied to Horizontal Line Array (HLA) beamformer output.

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Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention
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Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention

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Related Experiment Videos

Last Updated: Jun 17, 2026

An Automated System for Sound Localization Testing in Hearing-Impaired Listeners
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An Automated System for Sound Localization Testing in Hearing-Impaired Listeners

Published on: March 13, 2026

Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention
04:32

Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention

Published on: December 20, 2024

  • Employed Hough transforms to analyze acoustic intensity striation patterns and estimate 'beta' and range/speed ratio.
  • Collected simultaneous acoustic data from an HLA and three hydrophones during the RAGS03 experiment.

    • Main Results:

    • Successfully demonstrated source localization capability for moving broadband noise sources (50-150 Hz).
    • Validated the estimation of the waveguide invariant parameter 'beta' using acoustic data.
    • Observed influence of range-dependent bathymetry on acoustic intensity striation patterns.

    Conclusions:

    • The combined approach of waveguide invariant theory and Hough transforms is feasible for locating broadband noise sources in shallow waters.
    • The method provides reliable estimation of the waveguide invariant parameter 'beta'.
    • Cross-validation with multiple data sources confirms the robustness of the localization technique.