A Comparison of the Diffracted Fields as Measured and Predicted for a Totally Reflecting Fence in a Scale Model Test for an EMP Simulator

Abstract

Experiments were conducted to observe and record the effectiveness of a fence acting as an electromagnetic barrier to the field emanating from a horizontally polarized electromagnetic pulse (EMP) simulator. The experimental results are compared to a theoretical model which predicts the observer height and range dependence of the electric field due to Fresnel diffraction. The comparison reveals good agreement, with typical uncertainties being on the order of 10 percent. Keywords: Scale modeling; Diffracted field prediction; Fresnel diffraction; Diffracted field measurements.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1990
Accession Number
ADA220513

Entities

People

  • Ira Kohlberg
  • James J. Loftus
  • Valerie Fronczak

Organizations

  • Harry Diamond Laboratories

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Agreements
  • Classification
  • Computer Programs
  • Diffraction
  • Electric Fields
  • Electromagnetic Pulses
  • Electromagnetic Shielding
  • Engineering
  • Generators
  • Measurement
  • Observers
  • Research Facilities
  • Scale Models
  • Security
  • Simulators
  • Step Functions
  • Systems Engineering

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Image Processing and Computer Vision.
  • Optical Fiber Sensing and Electromagnetic Propagation.