Cavity Detection and Delineation Research. Report 5. Electromagnetic (Radar) Techniques Applied to Cavity Detection.

Abstract

This study evaluated four different radar systems to determine their effectiveness in locating subterranean cavities. Tests were conducted at three well-documented sites: Vicksburg, Miss.; Medford Cave, Fla. (near Ocala); and Manatee Springs, Fla. (near Chiefland). None of the radar systems was effective at the Vicksburg, Miss., site because of extremely high conductivities encountered in the overburden materials which were comprised primarily of silts (loess) and clays. The following radar systems were used in this study: (a) A pulsed system fabricated and operated by personnel from Texas A/M University; (b) A pulsed system commercially manufactured by GSSI operated by the owners, Technos, Inc.; (c) A pulsed system developed, fabricated, and operated by personnel from SwRI, and (d) A continuous wave system development, fabricated and operated by personnel from LLNL.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1983
Accession Number
ADA132923

Entities

People

  • Robert F. Ballard Jr.

Tags

Communities of Interest

  • Advanced Electronics
  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Detection
  • Dielectric Permittivity
  • Diffraction
  • Electrical Properties
  • Frequency
  • Fresh Water
  • Groundwater
  • Measurement
  • Moisture Content
  • Plastic Explosives
  • Radar
  • Radar Equipment
  • Repetition Rate
  • Spectrum Analyzers
  • Transmitters
  • Wave Propagation
  • Waveforms

Readers

  • Geotechnical Engineering.
  • Marine Propulsion Engineering and Naval Architecture
  • Radar Systems Engineering.