Accession Number:

AD0738791

Title:

Radar Propagation in the Arctic

Descriptive Note:

Conference proceedings no. 97

Corporate Author:

ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT NEUILLY-SUR-SEINE (FRANCE)

Personal Author(s):

Report Date:

1972-01-01

Pagination or Media Count:

433.0

Abstract:

The characteristics of radar propagation in the arctic ionosphere, such as amplitude, phase and angle scintillation, auroral clutter and auroral noise affecting VHF-UHF transmissions are of concern. For HF transmissions,the additional ionospheric phenomena of interest are, spread F, sporadic E, auroral absorption, polar cap absorption, and traveling ionospheric disturbances. The current status of experimental and theoretical data on the propagation limitations of these effects in the frequency range from approximately 1 MHz to 10 GHz and the correlation of these effects with such phenomena as magnetic activity, optical aurora and particle precipitation were considered at the meeting. CW and pulse transmissions were treated for propagation paths traversing the arctic regions. Investigations of the arctic-ionospheric propagation characteristics utilizing rafio astronomical and satellite transmissions were particularly applicable to this meeting. Author

Descriptors:

• *IONOSPHERIC PROPAGATION
• *RADAR SIGNALS
• *SYMPOSIA
• ARCTIC REGIONS
• AURORAE
• BACKSCATTERING
• HIGH FREQUENCY
• SCINTILLATION
• ULTRAHIGH FREQUENCY
• VERY HIGH FREQUENCY

Subject Categories:

• Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE