Electronic Scanning Techniques for Parametric Transmitters

Abstract

A study was conducted to investigate four scanning techniques for forming multiple parametric beams in high resolution parametric sonar systems. A coded pulse scan technique employing coded pulse sequences for azimuth sector identification was found to be best suited for this application. A system was designed, constructed, and used to demonstrate the electronic scanning of a parametric beam. A nominal 2.3 degree beam was steered at angles of plus or minus 1 degrees, plus or minus 7 degrees, and plus or minus 14 degrees. The source level was 181 dB re micro Pa at 1 m. The system developed will be further employed to evaluate word sets to be used in coded pulse parametric transmitters.

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Document Details

Document Type
Technical Report
Publication Date
Jan 24, 1974
Accession Number
ADA011356

Entities

People

  • Robert L. White

Organizations

  • University of Texas at Austin

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Beams
  • Amplifiers
  • Carrier Frequencies
  • Delay Lines
  • Detectors
  • Difference Frequency
  • Doppler Effect
  • Frequency
  • Frequency Shift
  • Generators
  • High Resolution
  • Impedance
  • Measurement
  • Modulation
  • Power Amplifiers
  • Scanning
  • Transmitters

Fields of Study

  • Physics

Readers

  • Phased Array Antenna Design.

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems