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Detection of suspended sediment effect on sidescan sonar imagery using the Navy's CASS-GRAB model

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Author
Chu, Peter C.
Cornelius, M.
Wegstaff, M.
Date
2005
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Abstract
Sidescan sonar detects objects buried in the seafloor through generating images of ordnance such as seamine buried in sediments. The sonar operates by illuminating a broad swath of 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.
Description
OCEANS2005, MTS/IEEE Conference Proceedings, DVD-ROM, 10 pages
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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.
URI
http://hdl.handle.net/10945/36298
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Related items

Showing items related by title, author, creator and subject.

  • Thumbnail

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

    Chu, Peter C.; Cornelius, M.; Wagstaff, M. (2005);
    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 ...
  • Thumbnail

    Effects of suspended sediment on acoustic detection using reverberation 

    Cornelious, Michael; Wagstaff, Mel; Chu, Peter C. (2005);
    Sonar operates by ensonifying a broad swath of the seabed using a line array of acoustic projectors with acoustic backscattering from the ensonified sediment. The suspended sediment layer affects the sonar imagery through ...
  • Thumbnail

    Effects of a suspended sediment layer on acoustic imagery 

    Cornelius, Michael (Monterey, California. Naval Postgraduate School, 2004-06);
    The Navy's CASS/GRAB sonar model is used to accurately simulate a side-scan sonar image with a mine-like object present through its reverberation characteristics. The acoustic impact of a suspended sediment layer is ...
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