Rain attenuation measurement and prediction on parallel 860-nm free space optical and 58-GHz millimeter-wave paths

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F12%3A%230000555" target="_blank" >RIV/00177016:_____/12:#0000555 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378289:_____/12:00378732 RIV/00177016:_____/12:#0000707

Výsledek na webu

<a href="http://opticalengineering.spiedigitallibrary.org/article.aspx?articleid=1183343" target="_blank" >http://opticalengineering.spiedigitallibrary.org/article.aspx?articleid=1183343</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/1.OE.51.3.031206" target="_blank" >10.1117/1.OE.51.3.031206</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Rain attenuation measurement and prediction on parallel 860-nm free space optical and 58-GHz millimeter-wave paths

Popis výsledku v původním jazyce

Attenuation of electromagnetic waves at 860 nm and 58 GHz due to scattering in rain is measured on the terrestrial paths simultaneously with rain intensity. The relationship between rain intensity and rain attenuation of light is analyzed using the Marshal-Palmer drop size distribution model and the Mie scattering theory. The pertinent power law model is derived from drop size distribution parameters. An empirical composite power law model is proposed and fitted to the dataset extracted from rain attenuation events recorded during a seven-year experiment in Prague. Observed average rain attenuation of light at intensities larger than about 5 mm/h is lower than attenuation predicted by standard models. Rain attenuation measured at 58 GHz is larger thanattenuation at 860 nm for rain intensities in the range from 0.1 to 100 mm/h.

Název v anglickém jazyce

Rain attenuation measurement and prediction on parallel 860-nm free space optical and 58-GHz millimeter-wave paths

Popis výsledku anglicky

Attenuation of electromagnetic waves at 860 nm and 58 GHz due to scattering in rain is measured on the terrestrial paths simultaneously with rain intensity. The relationship between rain intensity and rain attenuation of light is analyzed using the Marshal-Palmer drop size distribution model and the Mie scattering theory. The pertinent power law model is derived from drop size distribution parameters. An empirical composite power law model is proposed and fitted to the dataset extracted from rain attenuation events recorded during a seven-year experiment in Prague. Observed average rain attenuation of light at intensities larger than about 5 mm/h is lower than attenuation predicted by standard models. Rain attenuation measured at 58 GHz is larger thanattenuation at 860 nm for rain intensities in the range from 0.1 to 100 mm/h.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Optical Engineering

ISSN

0091-3286

e-ISSN

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Svazek periodika

51

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

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Kód UT WoS článku

000302780500010

EID výsledku v databázi Scopus

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