Detection of Suspended Sediment Effect on Sidescan Sonar Imagery Using the Navy’s CASS-GRAB Model

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Authors
Chu, Peter C.
Cornelius, M.
Wagstaff, M.
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Date of Issue
2005
Date
2005
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Abstract
Sidescan sonar detects objects buried in the seafloor through generating images of ordnance such as sea mine buried in sediments. The sonar operates by illuminating a broad swath of the seabed using a line array of acoustic projectors while acoustic backscattering from the illuminated sediment volume is measured. The effect of suspended sediment on the sonar imagery depends on the volume scattering strength of the suspended sediment layer. Understanding the acoustic characteristics of suspended sediment layer can aid the Navy in the detection of mines using the sonar imagery. This study describes a combined experimental and modeling effort on the volume scattering strength on the burial object detection. A range of critical values of volume scattering strength for the buried object detection were discovered through repeated model simulations.
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Conference Paper
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IEEE/Marine Technological Society OCEANS 2005 Conference, Washington D.C., 16-20 September 2005.
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https://hdl.handle.net/10945/42392
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Oceanography
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Chu, P.C., M. Cornelius, M. Wagstaff, Effect of suspended sediment on acoustic detection using the Navy's CASS/GRAB model. IEEE/Marine Technological Society OCEANS 2005 Conference, Washington D.C., 16-20 September 2005.
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
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