Time Evolution of Bistatic Acoustic Scattering: Mechanism Loci Identification for Broadside Cylinder Near a Flat Interface

The study of sound scattering from solid targets near a water-sediment interface is a topic of recent interest. Keeping in line with this direction of study, the following is an investigation of the various acoustic scattering mechanisms from a solid aluminum cylinder in broadside geometry near a fl...

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Bibliographic Details
Published in:IEEE journal of oceanic engineering 2021-07, Vol.46 (3), p.1024-1033
Main Authors: Eastland, Grant C., Marston, Philip L.
Format: Article
Language:English
Subjects:
Acoustic scattering
Acoustic signal detection
Acoustics
Aluminium
Aluminum
Approximation
Cylinders
Geometrical optics
Loci
Optics
Scattering
Sonar applications
Sound scatter
Sound scattering
Underwater acoustics
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Summary:The study of sound scattering from solid targets near a water-sediment interface is a topic of recent interest. Keeping in line with this direction of study, the following is an investigation of the various acoustic scattering mechanisms from a solid aluminum cylinder in broadside geometry near a flat air-water interface. In addition to identifying the possible scattering interactions that can occur, contained in this article is the explanation of the various methods utilized to investigate the different physical processes. Furthermore, the following treatment will utilize the geometrical optics approximation to treat targets as point particles to perform a simple analysis of the processes in the time domain. Although this approach is useful, it will not completely describe all aspects of the interactions but will provide a cursory understanding of the timing relations of the different identified mechanisms and will give an explanation of acoustic feature loci of a variety of possible scattering mechanisms.
ISSN:0364-9059
1558-1691
DOI:10.1109/JOE.2020.3028675