Preliminary Studies of a Technique for Measuring the Volume Backscattering from Sediments.

Abstract

An experimental study was performed to devise a technique for measuring the volume backscattering from coastal ocean bottom sediments. This experimental technique had never been performed in the laboratory. The volume backscattering was to be determined by comparing the echoes returned from the sediment with the echo returned from the water/air interface. Measurements made on echoes returned from the water/air interface indicated that the apparatus, data acquisition system, and analysis system were performing correctly. Two types of sediments (fine sand and aggregate gravel) were used. The fine sand did not produce measureable volume backscattering and the aggregate showed results that depended on the region of sediment ensonified. It is recommended that a sediment more homogeneous than the aggregate, but with more backscattering than the fine sand be used in the future studies.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1986
Accession Number
ADA175261

Entities

People

  • Federico R. Diaz

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Waves
  • Acoustics
  • Acquisition
  • Backscattering
  • Classification
  • Computer Programs
  • Data Acquisition
  • Data Sets
  • Digital Data
  • Electronic Equipment
  • Far Field
  • Frequency
  • Geometry
  • Measurement
  • Near Field
  • Physical Properties
  • Scattering

Readers

  • Acoustical Oceanography.
  • Pavement Materials Engineering.
  • Systems Analysis and Design