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Details van artikel 15 van 22 gevonden artikelen
| Titel: |
Modeling of 830 nm FSO Link Attenuation in Fog or Wind Turbulence |
| Auteur: |
J. Pesek O. Fiser J. Svoboda V. Schejbal |
| Verschenen in: |
Radioengineering |
| Paginering: | Jaargang 19 (2010) nr. 2 pagina's 237-241 |
| Jaar: |
2010 |
| Inhoud: |
This study is focused on the experimental research of the atmosphere impact on FSO link attenuation. Experiment is performed on a mountain observatory Milesovka of severe weather conditions. The empirical relationships on 830 nm only between FSO attenuation A on one hand and atmospheric visibility V or wind turbulent energy ET on the other hand are presented and discussed. In the fog case it was found A= 401.4V-0.5738- 1.462 dB/60m (V in meters) while for the attenuation due to the wind turbulence ET it holds A = 2.112 - 2.213 exp(-0.2867ET) dB/60m (ET in m2s-2, it was derived for 830 nm wave length). A discussion concerning problems of the “clear air attenuation,” atmospheric turbulences and sun shine impact, which was observed as a maximum 2 dB attenuation for a few minutes with a period of 24 hours is added. |
| Uitgever: |
Spolecnost pro radioelektronicke inzenyrstvi (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 15 van 22 gevonden artikelen
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