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Statements

Subject Item
n2:RIV%2F00216305%3A26220%2F09%3APU83172%21RIV10-MSM-26220___
rdf:type
n15:Vysledek skos:Concept
dcterms:description
While the propagation of RF waves in the atmosphere has been studied extensively and many reliable and proven models are available from ITU-R, similar support for FSO link design has not been fully established yet. The occurrences of fog events can cut-off the communication completely for hours or even days [Muh07]. Fog also imposes multiple propagation paths, which causes temporal broadening (dispersion) of transmitted pulses resulting in intersymbol interference (ISI) for high bandwidth links. The channel behaves like a low-pass filter during fog events. The significant effect of dispersion has been studied for ground-to-air/satellite communication through clouds [Wu07], but only few papers deal with fog whose physical properties are different. Rather complex digital detection techniques have been proposed to mitigate ISI [Lee06], but no chips are available at the moment. While the propagation of RF waves in the atmosphere has been studied extensively and many reliable and proven models are available from ITU-R, similar support for FSO link design has not been fully established yet. The occurrences of fog events can cut-off the communication completely for hours or even days [Muh07]. Fog also imposes multiple propagation paths, which causes temporal broadening (dispersion) of transmitted pulses resulting in intersymbol interference (ISI) for high bandwidth links. The channel behaves like a low-pass filter during fog events. The significant effect of dispersion has been studied for ground-to-air/satellite communication through clouds [Wu07], but only few papers deal with fog whose physical properties are different. Rather complex digital detection techniques have been proposed to mitigate ISI [Lee06], but no chips are available at the moment.
dcterms:title
Intersymbol Interference in Atmospheric Optical Channel Intersymbol Interference in Atmospheric Optical Channel
skos:prefLabel
Intersymbol Interference in Atmospheric Optical Channel Intersymbol Interference in Atmospheric Optical Channel
skos:notation
RIV/00216305:26220/09:PU83172!RIV10-MSM-26220___
n3:aktivita
n8:Z n8:P
n3:aktivity
P(GA102/08/0851), P(GA102/09/0550), Z(MSM0021630513)
n3:dodaniDat
n11:2010
n3:domaciTvurceVysledku
n10:1467379 n10:1435299 n10:4291484
n3:druhVysledku
n16:D
n3:duvernostUdaju
n22:S
n3:entitaPredkladatele
n21:predkladatel
n3:idSjednocenehoVysledku
320171
n3:idVysledku
RIV/00216305:26220/09:PU83172
n3:jazykVysledku
n14:eng
n3:klicovaSlova
FSO, digital links, ISI, equalization
n3:klicoveSlovo
n7:ISI n7:equalization n7:digital%20links n7:FSO
n3:kontrolniKodProRIV
[C1B64350596A]
n3:mistoKonaniAkce
Tatranské Zruby
n3:mistoVydani
Slovakia
n3:nazevZdroje
Komunikačné a informačné technológie 2009
n3:obor
n13:JA
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:projekt
n20:GA102%2F08%2F0851 n20:GA102%2F09%2F0550
n3:rokUplatneniVysledku
n11:2009
n3:tvurceVysledku
Kolka, Zdeněk Biolek, Dalibor Biolková, Viera
n3:typAkce
n18:WRD
n3:zahajeniAkce
2009-10-14+02:00
n3:zamer
n12:MSM0021630513
s:numberOfPages
5
n6:hasPublisher
Akadémia ozbrojených síl generála Milana Rastislava Štefánika
n19:isbn
978-80-8040-376-8
n4:organizacniJednotka
26220