The Measurement of the Depth of a Sonar Array.

Abstract

The measurement of the depth of a sonar array using a modified counting technique for the demodulation and decoding of frequency modulated instrumentation signals is presented. A data dependent overflowing counter feeds demodulated data into a Programmable Read Only Memory based lookup table. Controlled, repeated counter overflows maximise the information content of the data. The system resolution is thus considerably increased with no effect on accuracy or component count. Frequency discriminating circuits are superfluous with this technique. Originator-supplied keywords include: Depth finding, and Pressure sensors.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1984
Accession Number
ADA149056

Entities

People

  • A. P. Clarke
  • G. M. Collins

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Acoustic Arrays
  • Acquisition
  • Arrays
  • Decoding
  • Demodulation
  • Depth Finding
  • Detectors
  • Frequency
  • Measurement
  • Measuring Instruments
  • Modulation
  • Pressure Transducers
  • Sonar
  • Sonar Arrays
  • Standards
  • Time Intervals

Fields of Study

  • Engineering

Readers

  • Applied Combinatorial Optimization and Logic Circuit Design.
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Optical Physics and Photonics.