Scattering measurements of rocky seafloors using a split-beam echosounder

Jen A. Gruber; Derek R. Olson

doi:10.1121/10.0024755

Scattering measurements of rocky seafloors using a split-beam echosounder

Jen A. Gruber, Derek R. Olson

Applied Research Laboratory (ARL)

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Scattering measurements were made off the coast of Pacific Grove, CA at 200 kHz, in an exposed fractured granite seafloor. Using inertial sensors and a split-beam transducer, data were processed to obtain a range of grazing angles corresponding to scattering strength, and signal processing techniques were used to extract the relevant portion of each ping. The ensonified angular width from a circular aperture is presented. Scattering strength measurements using different assumptions regarding the grazing angle were compared. The empirical Lommel-Seeliger model provided a good fit to measured data with a parameter of −18.4 dB.

Original language	English (US)
Article number	026001
Journal	JASA Express Letters
Volume	4
Issue number	2
DOIs	https://doi.org/10.1121/10.0024755
State	Published - Feb 1 2024

All Science Journal Classification (ASJC) codes

Acoustics and Ultrasonics
Music
Arts and Humanities (miscellaneous)

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10.1121/10.0024755

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abstract = "Scattering measurements were made off the coast of Pacific Grove, CA at 200 kHz, in an exposed fractured granite seafloor. Using inertial sensors and a split-beam transducer, data were processed to obtain a range of grazing angles corresponding to scattering strength, and signal processing techniques were used to extract the relevant portion of each ping. The ensonified angular width from a circular aperture is presented. Scattering strength measurements using different assumptions regarding the grazing angle were compared. The empirical Lommel-Seeliger model provided a good fit to measured data with a parameter of −18.4 dB.",

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N2 - Scattering measurements were made off the coast of Pacific Grove, CA at 200 kHz, in an exposed fractured granite seafloor. Using inertial sensors and a split-beam transducer, data were processed to obtain a range of grazing angles corresponding to scattering strength, and signal processing techniques were used to extract the relevant portion of each ping. The ensonified angular width from a circular aperture is presented. Scattering strength measurements using different assumptions regarding the grazing angle were compared. The empirical Lommel-Seeliger model provided a good fit to measured data with a parameter of −18.4 dB.

AB - Scattering measurements were made off the coast of Pacific Grove, CA at 200 kHz, in an exposed fractured granite seafloor. Using inertial sensors and a split-beam transducer, data were processed to obtain a range of grazing angles corresponding to scattering strength, and signal processing techniques were used to extract the relevant portion of each ping. The ensonified angular width from a circular aperture is presented. Scattering strength measurements using different assumptions regarding the grazing angle were compared. The empirical Lommel-Seeliger model provided a good fit to measured data with a parameter of −18.4 dB.

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Scattering measurements of rocky seafloors using a split-beam echosounder

Abstract

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