Ionospheric Modeling and Propagation Analysis.

Abstract

This report describes several studies and the development of computer techniques toward improving the capability of predicting and assessing HF propagation through the ionosphere. These studies included the development of vertical electron density models which can accurately represent observed oblique and vertical ionograms. These models have been represented by a series of functions which describe the individual ionospheric layers and which are analytically integratable to yield expected ray path trajectories. A computer program has been written which incorporates these features and yields results which are two orders of magnitude faster than those available using conventional numerical ray tracing techniques. The technique has been applied to several studies including the simulation of the backscatter leading edge of oblique ionograms and the determination of HF circuit parameters for a specified ground coverage. The results are presented as a function of the change in individual ionospheric layer parameters. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1980
Accession Number
ADA087259

Entities

People

  • David C. Miller
  • Joseph Gibbs

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Air Force
  • Backscattering
  • Computer Programs
  • Computers
  • Electromagnetic Wave Propagation
  • Electron Density
  • Electrons
  • Frequency
  • Geometry
  • Ionograms
  • Ionosphere
  • Ionospheric Models
  • Leading Edges
  • Ray Tracing
  • Refractive Index
  • Simulations
  • Trajectories

Fields of Study

  • Physics

Readers

  • Software Engineering.
  • Space/Atmospheric Physics.
  • Wave Propagation and Nonlinear Chaotic Dynamics.

Technology Areas

  • Microelectronics