TE/TM (Transverse Magnetic/Transverse Electric) Height Profile Measurements of Transpolar VLF (Very Low Frequency) Signals,

Abstract

Transverse magnetic (TM) and transverse electric (TE) height-gain profiles of eight ground-based transmitters and one airborne transmitter were measured simultaneously by a rocket-borne wideband receiver flown at Thule AB, Greenland, under nighttime conditions. The profile shapes are shown to depend both on ground parameters and on solar illumination conditions over the propagation paths. Significant TM-to-TE conversion was observed for ground-based transmitters located in the night hemisphere, while none was measured for sources in daylight. No TE-to-TM conversion was measured for the airborne transmitter. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1987
Accession Number
ADA194503

Entities

People

  • John L. Heckscher
  • John P. Turtle
  • Paul A. Kossey

Organizations

  • Rome Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Aircrafts
  • Antennas
  • Bandwidth
  • Conversion
  • Data Reduction
  • Electromagnetic Wave Propagation
  • Ferrites
  • Frequency
  • Glaciers
  • Ground Based
  • Instrumentation
  • Rocket Trajectories
  • Slant Range
  • Trajectories
  • Transmitters
  • Wave Propagation

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Polar and Arctic Studies
  • Space Exploration and Orbital Mechanics.