RAY TRACING IN THE IONOSPHERE

Abstract

The problems of tracing rays in the ionosphere for radio propagation, primarily for high frequencies (3 to 30 Mc/s) and above, are discussed. The limitations on 'classical' geometrical optics are described, and their applications to ionospheric problems are indicated. Some 'simplified' processes of ray tracing, which apply well at the earth's surface, but not in the ionosphere itself, are first presented. Next, ray-tracing methods which apply in an isotropic ionosphere, when the effects of the earth's magnetic field are negligible, are discussed. The results are then extended to more general cases of an isotropic medium, and then to an anisotropic medium (such as the ionosphere in the presence of the earth's magnetic field). Certain special problems which must be considered in ray-tracing studies are described next and finally, a few of the important areas for the application of ray tracing are noted.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1967
Accession Number
AD0820670

Entities

People

  • John M. Kelso

Tags

Communities of Interest

  • Advanced Electronics
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Differential Equations
  • Digital Computers
  • Doppler Effect
  • Electromagnetic Wave Propagation
  • Electron Density
  • Frequency
  • Frequency Bands
  • Ionosphere
  • Ionospheric Propagation
  • Magnetic Fields
  • Physics Laboratories
  • Radio Transmission
  • Radio Waves
  • Ray Tracing
  • Refraction
  • Refractive Index
  • Wave Propagation

Readers

  • Pulsed Power and Plasma Physics.
  • Radar Systems Engineering.
  • Theoretical Analysis.