Seismic Sonar Technology

Abstract

LONG-TERM GOAL. Develop the basic concepts of an active, seismic sonar for the detection of mines and/or unexploded ordnance buried in the surf and near-surf zone. OBJECTIVE. Test the hypothesis that seismic interface waves can be discretely excited and can be reflected off buried objects, producing detectable echoes. APPROACH. Develop electromechanical transducers having two, controllable, degrees of vibrational freedom that can discretely excite seismic interface waves. (These are vector waves that require both a horizontal and vertical component in order to be excited.) Test and evaluate these transducers at the Navy beach on Monterey Bay (and elsewhere), after ground truth and noise measurements are made. Develop a rudimentary seismic sonar apparatus for echo ranging tests.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1997
Accession Number
ADA634497

Entities

People

  • Steven Baker
  • Thomas Muir

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Counter IED

DTIC Thesaurus Topics

  • Actuators
  • Ambient Noise
  • Buried Objects
  • Echo Ranging
  • Engineering
  • Information Operations
  • Marine Mammals
  • Measurement
  • Naval Operations
  • Navy
  • Physics
  • Sediments
  • Shallow Water
  • Signal Processing
  • Sonar
  • Transducers
  • Unexploded Ammunition

Fields of Study

  • Engineering

Readers

  • Acoustical Oceanography.
  • Coastal Oceanography
  • Electrical Engineering

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems