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Related Experiment Video

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

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

Published on: December 20, 2024

Round-robin multiple-source localization.

William Mantzel¹, Justin Romberg¹, Karim G Sabra²

¹School of Electrical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30308.

The Journal of the Acoustical Society of America

|January 21, 2014

Summary

This study presents a novel round-robin method for multi-source localization using matched-field processing. The approach accurately estimates source locations in ocean waveguides, outperforming existing techniques.

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Area of Science:

Acoustics
Signal Processing
Oceanography

Background:

Accurate multi-source localization is crucial for underwater surveillance and exploration.
Existing methods often struggle with interference and computational complexity in complex environments.

Purpose of the Study:

To develop an improved round-robin localization technique for multiple underwater acoustic sources.
To enhance accuracy and computational efficiency in matched-field processing.

Main Methods:

Introduced a round-robin approach for iterative source location estimation.
Utilized a robust projection matrix to null current estimates and minimize interference.
Simulated performance in a Pekeris ocean waveguide for single-frequency and broadband-coherent scenarios.

Main Results:

The proposed method demonstrates favorable performance compared to previous approaches.
Effective handling of interference from nearby sources was achieved.
Incorporation of randomized back-propagations offered computational benefits.

Conclusions:

The novel round-robin matched-field processing offers a robust and efficient solution for multi-source localization.
The method shows significant potential for real-world applications in underwater acoustics.