Different atmospheric effects causing FSO link attenuation: experimental results and modelling in Czech Republic

被引：0
|
作者：
Fiser, Ondrej [1 ]
Brazda, Vladimir [2 ]
Wilfert, Otakar [3 ]
机构：
[1] Inst Atmospher Phys CAS, Prague, Czech Republic
[2] Univ Pardubice, Fac Elect Engn & Informat, Pardubice, Czech Republic
[3] Brno Univ Technol, Dept Radio Elect, Brno 61200, Czech Republic
来源：
LASER COMMUNICATION AND PROPAGATION THROUGH THE ATMOSPHERE AND OCEANS IV | 2015年 / 9614卷
关键词：
free space optics; attenuation; visibility; rain rate; turbulence; sonic temperature; FOG;
D O I：
10.1117/12.2188348
中图分类号：
P4 [大气科学（气象学）];
学科分类号：
0706 ; 070601 ;
摘要：
The four year FSO link attenuation measurement concurrently with most important meteorological parameters was performed at our mountain observatory Milesovka. In this contribution we summarize and classify different atmospheric phenomena after the FSO link attenuation quantity. For all particular phenomena the CD curves, typical events and simple dependences on relevant atmospheric parameter(s) are presented. We consider the following phenomena (approximate specific attenuation in dB/km in brackets): 1. Fog and cloud (hundreds dB/km) 2. Rain and snow (tens dB/km) 3. Atmospheric turbulence (unit dB) 4. Clear air attenuation due to water vapour (unit dB or less)
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页数：9
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