An Evaluation of VLF Daytime Propagation Parameters Using a Multi-Frequency Sounder

Abstract

An oblique incidence VLF ionospheric sounder system gives a means of obtaining multi-frequency amplitude and phase measurements in the VLF band simultaneously at up to 10 frequencies over a single propagation path. The analysis presented in this report is an attempt (1) to determine the degree of correlation obtainable between experimental sounder data and predicted results from existing theoretical models for VLF propagation, (2) to determine the variability of propagation parameters derived from the experimental data, and (3) to compare theoretical model parameters which best describe experimental results with previously published findings.

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Document Details

Document Type
Technical Report
Publication Date
Mar 30, 1968
Accession Number
AD0829842

Entities

People

  • David G. Morfitt
  • Verne E. Hildebrand

Organizations

  • Naval Air Weapons Station China Lake

Tags

Communities of Interest

  • Advanced Electronics
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Altitude
  • Cosmic Rays
  • Electron Density
  • Electrons
  • Environment
  • Experimental Data
  • Frequency
  • Ionization
  • Ionosphere
  • Magnetic Fields
  • Magnetic Tape
  • Measurement
  • Radiation
  • Radio Waves
  • Solar Radiation
  • X Rays

Fields of Study

  • Physics

Readers

  • Astronomy and Astrophysics.
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering