Variations in Omega Propagation Parameters.
The dependence of first-mode propagation parameters on ground conductivity and the terrestrial magnetic field is investigated for frequencies within the spectrum of the Omega Navigation System, 10.2-13.6 kHz. The parameters are shown to exhibit gradual, monotonic variation with conductivity througho...
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ftdtic:AD0747636 2023-05-15T14:59:02+02:00 Variations in Omega Propagation Parameters. Gallenberger, R. J. Swanson, E. R. NAVAL ELECTRONICS LAB CENTER SAN DIEGO CA 1971-06-25 text/html http://www.dtic.mil/docs/citations/AD0747636 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0747636 en eng http://www.dtic.mil/docs/citations/AD0747636 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Navigation and Guidance *HYPERBOLIC NAVIGATION *OMEGA NAVIGATION RADIO TRANSMISSION ARCTIC REGIONS PREDICTIONS GEOMAGNETISM VERY LOW FREQUENCY OMEGA NAVIGATION SYSTEM Text 1971 ftdtic 2016-02-19T01:58:46Z The dependence of first-mode propagation parameters on ground conductivity and the terrestrial magnetic field is investigated for frequencies within the spectrum of the Omega Navigation System, 10.2-13.6 kHz. The parameters are shown to exhibit gradual, monotonic variation with conductivity throughout the range of normal ground conductivities, and to present no special problem for propagation predictions. For very low conductivity ground, however, modal parameters show a complicated dependence on conductivity, and accurate predictions of propagation over permafrost and ice may therefore be difficult. (Author) Text Arctic Ice permafrost Defense Technical Information Center: DTIC Technical Reports database Arctic |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Navigation and Guidance *HYPERBOLIC NAVIGATION *OMEGA NAVIGATION RADIO TRANSMISSION ARCTIC REGIONS PREDICTIONS GEOMAGNETISM VERY LOW FREQUENCY OMEGA NAVIGATION SYSTEM |
spellingShingle |
Navigation and Guidance *HYPERBOLIC NAVIGATION *OMEGA NAVIGATION RADIO TRANSMISSION ARCTIC REGIONS PREDICTIONS GEOMAGNETISM VERY LOW FREQUENCY OMEGA NAVIGATION SYSTEM Gallenberger, R. J. Swanson, E. R. Variations in Omega Propagation Parameters. |
topic_facet |
Navigation and Guidance *HYPERBOLIC NAVIGATION *OMEGA NAVIGATION RADIO TRANSMISSION ARCTIC REGIONS PREDICTIONS GEOMAGNETISM VERY LOW FREQUENCY OMEGA NAVIGATION SYSTEM |
description |
The dependence of first-mode propagation parameters on ground conductivity and the terrestrial magnetic field is investigated for frequencies within the spectrum of the Omega Navigation System, 10.2-13.6 kHz. The parameters are shown to exhibit gradual, monotonic variation with conductivity throughout the range of normal ground conductivities, and to present no special problem for propagation predictions. For very low conductivity ground, however, modal parameters show a complicated dependence on conductivity, and accurate predictions of propagation over permafrost and ice may therefore be difficult. (Author) |
author2 |
NAVAL ELECTRONICS LAB CENTER SAN DIEGO CA |
format |
Text |
author |
Gallenberger, R. J. Swanson, E. R. |
author_facet |
Gallenberger, R. J. Swanson, E. R. |
author_sort |
Gallenberger, R. J. |
title |
Variations in Omega Propagation Parameters. |
title_short |
Variations in Omega Propagation Parameters. |
title_full |
Variations in Omega Propagation Parameters. |
title_fullStr |
Variations in Omega Propagation Parameters. |
title_full_unstemmed |
Variations in Omega Propagation Parameters. |
title_sort |
variations in omega propagation parameters. |
publishDate |
1971 |
url |
http://www.dtic.mil/docs/citations/AD0747636 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0747636 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Ice permafrost |
genre_facet |
Arctic Ice permafrost |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/AD0747636 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
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1766331157084897280 |