A STUDY OF INTERFERENCE IN THE ALOUETTE TOPSIDE SOUNDER RECORDS,

Abstract

The Alouette ionograms and AGC recordings obtained under nighttime conditions are found to be of poor quality because of unidentified man-made interference. This study shows that such interference is mainly prevalent over densely populated regions of the world and seriously degrades the night-time ionograms obtained at stations like Ottawa and Winkfield, but is not apparent in recordings from the South Atlantic station. The most probable cause of the interference is ground transmissions that propagate above the F-region critical frequency and intermodulate in the satellite receiver. No evidence has been found for a contribution to the interference by way of the whistler mode of propagation. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1963
Accession Number
AD0430222

Entities

People

  • T. R. Hartz

Organizations

  • Communications Research Centre Canada

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Artificial Satellites
  • Atmospherics
  • Electromagnetic Radiation
  • Frequency
  • Instrumentation
  • Ionograms
  • Ionosondes
  • Measuring Instruments
  • Radiation
  • Radio Waves
  • Whistlers

Readers

  • Educational Psychology
  • Radar Systems Engineering.
  • Space/Atmospheric Physics.

Technology Areas

  • Space