High Frequency Acoustic Reflection and Transmission in Ocean Sediments

Abstract

Development of a physical model of high-frequency acoustic interaction with the ocean floor, including penetration through and reflection from smooth and rough water/sediment interfaces, scattering from the interface roughness and volume heterogeneities and propagation within the sediment. The model will aid in the detection and classification of buried mines and improve SONAR performance in shallow water. 1) Determination of the correct physical model of acoustic propagation through ocean sediments and scattering from sediment interfaces through the analysis of in situ measurements. 2) Development of predictive models that can account for the all of the physical processes and variability of acoustic propagation and scattering in ocean environments with special emphasis on propagation in shallow water waveguides and scattering from ocean sediments. 3) Development of the new experimental techniques to measure geo-acoustic parameters in the ocean

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2011
Accession Number
ADA571663

Entities

People

  • Marcia J. Isakson

Organizations

  • University of Texas at Austin

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Reflection
  • Acoustic Scattering
  • Backscattering
  • Frequency
  • Grain Size
  • Measurement
  • Plane Waves
  • Power Spectra
  • Reflection
  • Scattering
  • Scattering Cross Sections
  • Seabed
  • Sediments
  • Sonar
  • Spectra
  • Surface Waves
  • Three Dimensional

Readers

  • Acoustical Oceanography.