Effects of Polar Cap Absorption Events on the Omega Navigation System.

The Federal Aviation Administration (FAA) sponsored a program at the Naval Research Laboratory (NRL) to investigate the effects of polar cap absorption (PCA) events and other propagation anomalies on the Omega navigation system. Data were collected at NRL and with the cooperation of the Canadian Min...

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Bibliographic Details
Main Author: Brogden, John W.
Other Authors: NAVAL RESEARCH LAB WASHINGTON DC
Format: Text
Language:English
Published: 1973
Subjects:
Radiofrequency Wave Propagation
*POLAR CAP ABSORPTION)
(*RADIO NAVIGATION
(*RADIO INTERFERENCE
POLAR CAP ABSORPTION)
VERY LOW FREQUENCY
IONOSPHERIC PROPAGATION
IONOSPHERIC DISTURBANCES
SUNSPOTS
RADIO WAVES
ABSORPTION
ATTENUATION
PHASE DISTORTION
AIRCRAFT
ARCTIC REGIONS
OMEGA navigation
Arctic
Canada
Online Access:http://www.dtic.mil/docs/citations/AD0915751
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0915751
Description
Summary:The Federal Aviation Administration (FAA) sponsored a program at the Naval Research Laboratory (NRL) to investigate the effects of polar cap absorption (PCA) events and other propagation anomalies on the Omega navigation system. Data were collected at NRL and with the cooperation of the Canadian Ministry of Transport at four locations in Canada. A large PCA event occurred during August 1972. Data taken at NRL show that the Composite Omega technique could be used to reduce the error due to this event from about 16 miles to about 3 miles. Since this investigation was conducted during the declining portion of the sunspot cycle, only a few PCA events were observed. (Author)

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