Design and Performance of Parametric Sonar Systems

Abstract

A brief non-mathematical explanation of the difference frequency generation and beamforming process is followed by a step-by-step design procedure using the Mellen-Moffett parametric source model. The relative merits of projector feed with a single driver supplying both primary frequencies to the projector as opposed to the 'checkerboard' technique are discussed. Distortion in both the parametric source and in receiving systems used in measurements is considered with suggestions on how these problems can be minimized. Applications of the parametric array to communications, echo ranging, and sub-bottom profiling are mentioned, and salient performances from tests of practical sources are listed. Finally, brief discussions of the results obtained from a cavitating, parametric source and from a parametric receiving array are given.

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Document Details

Document Type
Technical Report
Publication Date
Sep 24, 1975
Accession Number
ADA016242

Entities

People

  • William L. Konrad

Organizations

  • Naval Underwater Systems Center

Tags

Communities of Interest

  • Energy and Power Technologies
  • Human Systems
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Acoustic Communications
  • Acoustics
  • Amplifiers
  • Bandwidth
  • Communication Systems
  • Demographic Cohorts
  • Difference Frequency
  • Distortion
  • Echo Ranging
  • Echoes
  • Filters
  • Frequency
  • Frequency Bands
  • High Resolution
  • Radiation Pressure
  • Range Finding
  • Sine Waves

Fields of Study

  • Engineering

Readers

  • Aerodynamics.
  • Phased Array Antenna Design.
  • Systems Analysis and Design