A Comparison of Measured Data and ITS Model Predictions.

Abstract

The Institute of Telecommunication Sciences (ITS) has developed for the Federal Aviation Administration (FAA), a computer model (IF-77) which predicts signal strengths, desired-to-undesired signal ratios, and a variety of other radio propagation related outputs. The model is periodically updated as ITS improves its prediction capability. The model was last validated by FAA about 10 years ago. Since a number of changes have been made to the model since then, revalidation is not inappropriate. In this Report, propagation predictions are compared with VOR and TACAN signal strength measurements taken on 20 VORTAC's in the Southwest Region of the United States. This comparison confirms once again, that the ITS/FAA model accurately predicts VOR and TACAN signal strength. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1978
Accession Number
ADA053265

Entities

People

  • Robert D. Smith

Organizations

  • Federal Aviation Administration

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Automatic Gain Control
  • Command Control Communications
  • Communication Systems
  • Computer Programs
  • Computers
  • Elevation
  • Frequency
  • Line Of Sight
  • Measurement
  • Plastic Explosives
  • Power
  • Radio Frequency
  • Standards
  • Three Dimensional
  • United States

Readers

  • Aviation Safety and Air Traffic Management
  • Computational Modeling and Simulation
  • Radar Systems Engineering.