Tunnel Detection

Abstract

This report investigates the problem of detecting tunnels; it focuses on the characteristics of the propagating medium and on techniques using compressional seismic (P) and electromagnetic (EM) waves propagating between sources and sensors located in boreholes at depths comparable with the tunnel for which one is searching. The interaction of P and EM waves with tunnels and with the surrounding media is studied as are detection methods in a general sense. This work has not looked into the specifics of sources, sensors and ambient noise levels. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1980
Accession Number
ADA089141

Entities

People

  • A. M. Despain
  • J. F. Vesecky
  • W. A. Nierenberg

Organizations

  • SRI International

Tags

Communities of Interest

  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Waves
  • Ambient Noise
  • Beam Forming
  • Boreholes
  • Detection
  • Detectors
  • Dielectric Permittivity
  • Diffraction
  • Doppler Effect
  • Electrical Engineering
  • Geometry
  • Igneous Rocks
  • Radar
  • Scattering
  • Two Dimensional
  • Wave Power
  • Wave Propagation

Fields of Study

  • Engineering

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Fluid Dynamics.
  • Seismology