An Analysis of Ionospheric Electron Content Measurements Utilizing Satellite-Emitted Signals,

Abstract

Analytical techniques are available which make use of the Faraday polarization rotation and the Doppler frequency shift phenomena for determining the ionospheric electron content by the passive monitoring of radio wave transmissions emanating from earth satellites. The accuracy of the various techniques can be evaluated by the simulator-computer program described in this report. The major components of the simulator consist of a satellite-orbit generator, a time-variant three-dimensional electron density model and an earth magnetic field model expressed in terms of a series of spherical harmonics. Ray tracings are performed utilizing Simpson's rule for numerical integration of the definite integrals defining the propagation phenomena. Preliminary results are presented of an analysis performed for one location in the midlatitudes. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1974
Accession Number
ADA042374

Entities

People

  • George H. Millman

Organizations

  • General Electric

Tags

DTIC Thesaurus Topics

  • Artificial Satellites
  • Computational Science
  • Computer Simulations
  • Doppler Effect
  • Electron Density
  • Frequency Shift
  • Geosynchronous Satellites
  • Ionosphere
  • Magnetic Fields
  • Measurement
  • Plastic Explosives
  • Polarization
  • Radio Transmission
  • Radio Waves
  • Refractive Index
  • Satellite Orbits
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Astronomy and Astrophysics.
  • Computational Modeling and Simulation

Technology Areas

  • Microelectronics
  • Space