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Statements

Subject Item
n2:RIV%2F00177016%3A_____%2F14%3A%230000774%21RIV14-GA0-00177016
rdf:type
skos:Concept n6:Vysledek
rdfs:seeAlso
http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=6679219&url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel7%2F50%2F4357488%2F06679219.pdf%3Farnumber%3D6679219
dcterms:description
The multiple scattering effects of light propagation in rain and fog are investigated by means of numerical Monte Carlo photon propagation simulations. Rain and fog consisting of water droplets are described by realistic drop size distributions with parameters related to physical parameters of hydrometeors such as rain intensity, liquid water content, effective droplet radius of fog and atmospheric visibility. Simulations show that optical attenuation due to rain is about two times lower than predicted by single scattering approach. Fog attenuation is also reduced for the lowest visibilities. An impulse response of optical channel in rain and fog is obtained and the explicit models for the delay spread dependence are provided. Under realistic conditions, the RMS delay spread due to rain on 1 km long FSO path is limited below 10 ps. Moderate and dense fog can cause the delay spread about 50 ps or more. Frequency characteristics of the FSO channel impaired by rain and fog are given. The multiple scattering effects of light propagation in rain and fog are investigated by means of numerical Monte Carlo photon propagation simulations. Rain and fog consisting of water droplets are described by realistic drop size distributions with parameters related to physical parameters of hydrometeors such as rain intensity, liquid water content, effective droplet radius of fog and atmospheric visibility. Simulations show that optical attenuation due to rain is about two times lower than predicted by single scattering approach. Fog attenuation is also reduced for the lowest visibilities. An impulse response of optical channel in rain and fog is obtained and the explicit models for the delay spread dependence are provided. Under realistic conditions, the RMS delay spread due to rain on 1 km long FSO path is limited below 10 ps. Moderate and dense fog can cause the delay spread about 50 ps or more. Frequency characteristics of the FSO channel impaired by rain and fog are given.
dcterms:title
Multiple scattering in rain and fog on free-space optical links Multiple scattering in rain and fog on free-space optical links
skos:prefLabel
Multiple scattering in rain and fog on free-space optical links Multiple scattering in rain and fog on free-space optical links
skos:notation
RIV/00177016:_____/14:#0000774!RIV14-GA0-00177016
n6:predkladatel
n7:ico%3A00177016
n3:aktivita
n11:P
n3:aktivity
P(GAP102/11/1376)
n3:cisloPeriodika
3
n3:dodaniDat
n18:2014
n3:domaciTvurceVysledku
n14:9586814 n14:1011383
n3:druhVysledku
n13:J
n3:duvernostUdaju
n15:S
n3:entitaPredkladatele
n10:predkladatel
n3:idSjednocenehoVysledku
31094
n3:idVysledku
RIV/00177016:_____/14:#0000774
n3:jazykVysledku
n20:eng
n3:klicovaSlova
free space optics; fog attenuation; rain attenuation; multiple scattering; monte carlo method
n3:klicoveSlovo
n5:fog%20attenuation n5:free%20space%20optics n5:monte%20carlo%20method n5:multiple%20scattering n5:rain%20attenuation
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[35AF3175A689]
n3:nazevZdroje
Journal of Lightwave Technology
n3:obor
n17:JA
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:projekt
n4:GAP102%2F11%2F1376
n3:rokUplatneniVysledku
n18:2014
n3:svazekPeriodika
32
n3:tvurceVysledku
Kvičera, Václav Grábner, Martin
n3:wos
000329515500004
s:issn
0733-8724
s:numberOfPages
8
n19:doi
10.1109/JLT.2013.2294356