Use of a Coherent Frequency Synthesizer in Echo-Sounder Studies of Deep Scattering Layers.

Abstract

A coherent frequency synthesizer under computer control is used to generate a pulse train which is power amplified and drives a UQN transducer. A pulse train at the two frequencies, 9.5 and 17kHz, is used to examine the deep scattering layers at 35 degrees 00 min N, 48 degrees 00 min W during the sunset migration. Striking differences in the scattering returns, as displayed on a facsimile recorder, show the utility of this method for increased frequency coverage in studies of deep scattering layers. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1972
Accession Number
AD0742824

Entities

People

  • Paul T. Mcelroy

Organizations

  • Woods Hole Oceanographic Institution

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Computers
  • Deep Scattering Layers
  • Echoes
  • Frequency
  • Frequency Synthesizers
  • Migration
  • Recording Systems
  • Scattering
  • Sonar
  • Transducers

Fields of Study

  • Physics

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Oceanography.
  • Radar Systems Engineering.