High Resolution, Narrow Beam Echo Sounder

Abstract

This work describes the development of a high resolution echo sounder for use with the R/P FLIP. The instrument has a source level of + 227 dB/micro Pa, a 3 dB beam width of 1 deg and a receiver sensitivity of - 176 dB/Micro Pa rpoviding operating capabilities as a bottom sounder for water depths to 2000 m. The results of its operation at sea along with observations of acoustic returns from multiple thin scattering layers to depth of over 400 m. are included. Graphic examples under various operating conditions are presented as well as reflection coefficients measured from bottom returns and acoustic scattering target strengths.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1976
Accession Number
ADA030972

Entities

People

  • E. D. Squier
  • F. H. Fisher
  • R. B. Williams
  • S. P. Burke

Organizations

  • Scripps Institution of Oceanography

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Coefficients
  • Frequency
  • Geography
  • High Resolution
  • Measurement
  • Military Research
  • Naval Warfare
  • Navy
  • Noise
  • Physics Laboratories
  • Scattering
  • Sea Water
  • Sonar
  • Target Strength
  • Test And Evaluation
  • Transducers
  • Universities

Readers

  • Oceanography.
  • Radar Systems Engineering.