About: Effective Earth Radius Variation and Diffraction Fading on Terrestrial Path

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Effective earth radius factor (k factor) is an important parameter for the assessment of clear-air propagation on terrestrial paths. Its variation obtained from the measurement of vertical distribution of atmospheric refractivity is studied in the paper. Two year statistics of the k factor are given for the whole year and different months. The related clear-air propagation impairment on the 10 GHz terrestrial path is shown in the example. A typical diffraction fading event is analyzed by a comparison of measured time evolution of received signal level and of a simulated one using measured refractivity. A direct correspondence between the time evolution of the effective earth radius factor and of attenuation due to reduced path clearance is so demonstrated. Effective earth radius factor (k factor) is an important parameter for the assessment of clear-air propagation on terrestrial paths. Its variation obtained from the measurement of vertical distribution of atmospheric refractivity is studied in the paper. Two year statistics of the k factor are given for the whole year and different months. The related clear-air propagation impairment on the 10 GHz terrestrial path is shown in the example. A typical diffraction fading event is analyzed by a comparison of measured time evolution of received signal level and of a simulated one using measured refractivity. A direct correspondence between the time evolution of the effective earth radius factor and of attenuation due to reduced path clearance is so demonstrated. (en)
Title	Effective Earth Radius Variation and Diffraction Fading on Terrestrial Path Effective Earth Radius Variation and Diffraction Fading on Terrestrial Path (en)
skos:prefLabel	Effective Earth Radius Variation and Diffraction Fading on Terrestrial Path Effective Earth Radius Variation and Diffraction Fading on Terrestrial Path (en)
skos:notation	RIV/00177016:_____/10:#0000508!RIV12-GA0-00177016
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GAP102/10/1901)
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Kvičera, Václav Grábner, Martin
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Český metrologický institut
http://linked.open...dnocenehoVysledku	256257
http://linked.open...ai/riv/idVysledku	RIV/00177016:_____/10:#0000508
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	microwave propagation; diffraction fading; effective earth radius (en)
http://linked.open.../riv/klicoveSlovo	diffraction fading effective earth radius microwave propagation
http://linked.open...ontrolniKodProRIV	[7A8E2D8B471F]
http://linked.open...v/mistoKonaniAkce	Loughborough
http://linked.open...i/riv/mistoVydani	Loughborough, UK
http://linked.open...i/riv/nazevZdroje	2010 Loughborough Antennas & Propagation Conference Proceedings
http://linked.open...in/vavai/riv/obor	JA
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Basic Research of Radiometeorology Properties of Tropospheric Ducting Layers by Using Artificial Intelligence Methods
http://linked.open...UplatneniVysledku	2010
http://linked.open...iv/tvurceVysledku	Grábner, Martin Kvičera, Václav Pechač, Pavel Jícha, Otakar
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2010-01-01 (xsd:date)
number of pages	4 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Loughborough University
https://schema.org/isbn	978-1-4244-7306-9

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