Accuracy of HF Skywave Field Strength Models: PROPHET and HFBC84

Abstract

This report presents a comparison of the predictions of the PROPHET and HFBC84 field strength models to observed data. Both models are described and plots of various statistical quantities relating to their predictive performance are given. Both models show large average residual and root mean square residual in predictions for frequencies which exceed the maximum useable frequency for a mode. The HFBC84 model shows large error for path lengths greater than 7000 km. The author suggests replacement for the current PROPHET field strength model based on the results of the comparison.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1987
Accession Number
ADA214252

Entities

People

  • R. A. Sprague

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Accuracy
  • Algorithms
  • Angle Of Incidence
  • Communication Systems
  • Computers
  • Databases
  • Electromagnetic Wave Propagation
  • Electrons
  • Errors
  • Frequency
  • Ionosphere
  • Magnetic Fields
  • Refractive Index
  • Sky Waves
  • Standards
  • Transmitters

Readers

  • Approximation Theory.
  • Space/Atmospheric Physics.