Estimation of the Acoustic Transducer Beam Aperture by Using the Geometric Backscattering Model for Side-Scan Sonar Systems

In this paper, we propose an algorithm for estimating the beam aperture of the acoustic transducers by using the geometric backscattering model for side-scan sonar systems. The geometric backscattering model is developed to describe the propagation paths of the signal transmitted from the transducer...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2023-02, Vol.23 (4), p.2190
Main Authors: Nguyen, Van Duc, Luu, Ngoc Minh, Nguyen, Quoc Khuong, Nguyen, Tien-Dung
Format: Article
Language:English
Subjects:
Acoustics
Algorithms
Apertures
Backscattering
estimation of the beam aperture
Hydrophones
Mathematical models
Ocean bottom
Propagation
R&D
Research & development
side scanning sonar
Signal processing
Sonar
Sonar systems
Transducers
underwater acoustic transducer
Underwater exploration
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Summary:In this paper, we propose an algorithm for estimating the beam aperture of the acoustic transducers by using the geometric backscattering model for side-scan sonar systems. The geometric backscattering model is developed to describe the propagation paths of the signal transmitted from the transducers towards the seabed and backscatters to the hydrophones. To evaluate our proposed algorithm, we have developed a side-scan sonar system. The side-scan sonar system uses two transducers, operating on two different frequencies and focusing on two different wave beams, to scan the images of the seabed. The proposed algorithm provides the estimated beam apertures of each transducer. Our obtained results agree quite well with the parameters provided by the manufacturers. Moreover, these results are used to calibrate the scanned images. We provide the scanned sonar 3D images of the Dong Do lakebed, Vietnam, to justify our proposal.
ISSN:1424-8220
1424-8220
DOI:10.3390/s23042190