Effects of a Suspended Sediment Layer on Acoustic Imagery

Abstract

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 investigated numerically using CASS/GRAB through changing the volume scattering characteristics of the lower water column. A range of critical values of volume scattering strength were discovered through repeated model simulations. An understanding of the acoustic characteristics of suspended sediment layers can aid the Navy in the detection of mines that might exist within these layers.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2004
Accession Number
ADA424675

Entities

People

  • Michael Cornelius

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Acoustic Detection
  • Acoustic Properties
  • Boundary Layer
  • California
  • Detection
  • Naval Mines
  • Scattering
  • Seabed
  • Sediments
  • Side Looking Sonar
  • Simulations
  • Sonar
  • Sonar Images
  • Suspended Sediments
  • United States
  • United States Naval Academy
  • Uss Princeton

Readers

  • Acoustical Oceanography.
  • Computational Modeling and Simulation