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Statements

Subject Item
n2:RIV%2F00177016%3A_____%2F10%3A%230000508%21RIV12-GA0-00177016
rdf:type
skos:Concept n14:Vysledek
dcterms: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.
dcterms:title
Effective Earth Radius Variation and Diffraction Fading on Terrestrial Path Effective Earth Radius Variation and Diffraction Fading on Terrestrial Path
skos:prefLabel
Effective Earth Radius Variation and Diffraction Fading on Terrestrial Path Effective Earth Radius Variation and Diffraction Fading on Terrestrial Path
skos:notation
RIV/00177016:_____/10:#0000508!RIV12-GA0-00177016
n3:aktivita
n8:P
n3:aktivity
P(GAP102/10/1901)
n3:dodaniDat
n12:2012
n3:domaciTvurceVysledku
n9:9586814 n9:1011383
n3:druhVysledku
n11:D
n3:duvernostUdaju
n20:S
n3:entitaPredkladatele
n15:predkladatel
n3:idSjednocenehoVysledku
256257
n3:idVysledku
RIV/00177016:_____/10:#0000508
n3:jazykVysledku
n13:eng
n3:klicovaSlova
microwave propagation; diffraction fading; effective earth radius
n3:klicoveSlovo
n4:microwave%20propagation n4:effective%20earth%20radius n4:diffraction%20fading
n3:kontrolniKodProRIV
[7A8E2D8B471F]
n3:mistoKonaniAkce
Loughborough
n3:mistoVydani
Loughborough, UK
n3:nazevZdroje
2010 Loughborough Antennas & Propagation Conference Proceedings
n3:obor
n16:JA
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
4
n3:projekt
n17:GAP102%2F10%2F1901
n3:rokUplatneniVysledku
n12:2010
n3:tvurceVysledku
Jícha, Otakar Pechač, Pavel Grábner, Martin Kvičera, Václav
n3:typAkce
n6:WRD
n3:zahajeniAkce
2010-01-01+01:00
s:numberOfPages
4
n7:hasPublisher
Loughborough University
n18:isbn
978-1-4244-7306-9