Hydrophone for Determining Direction of Underwater Sound

Abstract

The invention is directed to an improved acoustic sensor system for determining the direction of underwater sound signals relative to a user is disclosed. The sensor system includes first and second sensing means for sensing incoming acoustic energy and for providing first and second acoustic energy signals in response thereto; separation means for separating the first and second sensing means a distance S = E(C(sub w)/C(sub A)) where E is substantially equal to the separation distance between the users ears, C(sub w) is the speed of sound in water, and C(sub A) is the speed of sound in air; detector means, operatively connected with the first and second sensing means, for providing first and second output signals in response to the first and second acoustic energy signals; and audio means, operatively connected with the detector means, for providing an audio output to the user in response to the first and second output signals.

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Document Details

Document Type
Technical Report
Publication Date
Nov 27, 1996
Accession Number
ADD018544

Entities

People

  • Stanley A. Fisher

Organizations

  • United States Department of the Navy

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Acoustic Detectors
  • Acoustic Signals
  • Composite Materials
  • Detectors
  • Ear
  • Electromagnetic Radiation
  • Filtration
  • Flow Noise
  • Hydrophones
  • Inventions
  • Materials
  • Optical Fibers
  • Phase Shift
  • Piezoelectric Polymers
  • Remotely Piloted Vehicles
  • Underwater Sound
  • Underwater Sound Signals

Readers

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