High Frequency Propagation Anomalies.

Abstract

A search was made for propagation anomalies using a large quantity of high frequency data produced as a byproduct of BRIGHAM, a Department of Defense project. The BRIGHAM data is based on 800 KHz wide samples of the HF spectrum at a 25 cycle rate, using a 2.8 KHz resolution for a duration of approximately 2.5 minutes. This method of data collection is unique and it was hoped that propagation anomalies, including wide band anomalies, might be detected. Anomalies are believed to occur in the propagation of radio signals and they are usually other than known, routine effects but may include known effects which cannot adequately be explained. The scope of the examination was limited to the visual analysis of computer processed data presented on an interactive graphics unit. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1973
Accession Number
AD0767657

Entities

People

  • Daniel Victor Stapleton Jr

Organizations

  • Naval Postgraduate School

Tags

DTIC Thesaurus Topics

  • Applied Computer Science
  • Computer Graphics
  • Computer Science
  • Computers
  • Department Of Defense
  • Frequency
  • Frequency Bands
  • Graphics
  • Interactive Graphics
  • Radio Frequency
  • Radio Signals
  • Spectra

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Materials Science (Mechanical Engineering).
  • Sensor Fusion and Tracking Systems.