High-Frequency Skywave Signal Power Measurement System

Abstract

The objective of this study was to verify high-frequency (HF) models for prediction of signal strength, signal-to-noise ratio, and circuit reliability. We derived a model of the short-term variability of signal strength. We established a transmission path for making high time resolution measurements of received power and transmission loss and used collected data to verify current models and develop new models. A transmission circuit was established between Forsyth, Montana, and Imperial Beach, California. Transmitting and receiving systems were designed and built. Software was developed for computer control of both transmitting and receiving systems. Measurements of received power at three selected frequencies in the HF band was begun in late December 1993.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1994
Accession Number
ADA284382

Entities

People

  • Richard Sprague
  • William Moison

Organizations

  • Naval Command, Control and Ocean Surveillance Center

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • California
  • Electromagnetic Wave Propagation
  • Frequency
  • Frequency Bands
  • Ionograms
  • Ionosphere
  • Measurement
  • Ocean Surveillance
  • Power Measurement
  • Research Facilities
  • Spectrum Analyzers
  • Surveillance
  • Test And Evaluation
  • Transmitters
  • Transmitting

Fields of Study

  • Engineering

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Military History of the United States in the 20th Century.
  • Seismology