FEASIBILITY STUDY OF THE USE OF VERY HIGH FREQUENCY RADIO IMAGING TECHNIQUES FOR DETECTION OF TUNNELS.

Abstract

A desk study and a laboratory scale-model study were made of the feasibility of using high resolution, very high frequency (VHF) mapping techniques to detect the presence of tunnel complexes such as occur in Vietnam. Detailed descriptions of proposed airborne systems for such detection are given. An evaluation of the feasibility of using these systems for tunnel detection was made by considering the known capabilities of existing radar systems for a similar purpose and the specific results of this scale-model study which involved the use of cylindrical and L-shaped Plexiglas rods submerged in water to simulate tunnels approximately 1 m in cross section buried beneath wet soils at depths of as much as 10 m. The results of the study indicate that tunnels could be detected in areas characteristic of a large part of Vietnam using the airborne systems described. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1967
Accession Number
AD0381811

Entities

People

  • Hansjoerg J. Nikodem

Tags

DTIC Thesaurus Topics

  • Airborne
  • Detection
  • Feasibility Studies
  • Frequency
  • High Resolution
  • Imaging Techniques
  • Models
  • Radar
  • Scale Models
  • Very High Frequency

Readers

  • Fluid Dynamics.
  • Radar Systems Engineering.
  • Structural Dynamics.