Měření rozptylu vln na vegetaci v blízkém zářivém poli

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F05%3A03108503" target="_blank" >RIV/68407700:21230/05:03108503 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Radiated Near-Field Measurement - Vegetation Scattering

Popis výsledku v původním jazyce

Power balance and fading statistics are very important issues for advanced point-to-multipoint wideband communication systems operating in millimeter waveband. Since the typical environment is an urban and suburban area a vegetation blockage is one of the performance limiting factors. While the average attenuation caused by trees is dealt with for many years there are not many resources concerning the dynamics effects caused by the vegetation blockage - fast fading statistics, etc. The goal of the presented laboratory experiment was to define basic parameters of a theoretical model. To obtain well defined conditions a radiated near-field scattered by a tree under test was measured using a near-field scanner at 38 GHz. The first phase, measurement of the co-polar field component in a 2D reception plane for various tree types and wind conditions, is introduced. The measurement data were used for the modeling of dynamic effects caused by vegetation obstacles.

Název v anglickém jazyce

Radiated Near-Field Measurement - Vegetation Scattering

Popis výsledku anglicky

Power balance and fading statistics are very important issues for advanced point-to-multipoint wideband communication systems operating in millimeter waveband. Since the typical environment is an urban and suburban area a vegetation blockage is one of the performance limiting factors. While the average attenuation caused by trees is dealt with for many years there are not many resources concerning the dynamics effects caused by the vegetation blockage - fast fading statistics, etc. The goal of the presented laboratory experiment was to define basic parameters of a theoretical model. To obtain well defined conditions a radiated near-field scattered by a tree under test was measured using a near-field scanner at 38 GHz. The first phase, measurement of the co-polar field component in a 2D reception plane for various tree types and wind conditions, is introduced. The measurement data were used for the modeling of dynamic effects caused by vegetation obstacles.

Druh

D - Stať ve sborníku

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

<a href="/cs/project/OC%20280.003" target="_blank" >OC 280.003: Výzkum šíření elektromagnetických vln v mm pásmu pro perspektivní komunikační systémy</a><br>

Návaznosti

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

Rok uplatnění

2005

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the International Conference on Electromagnetic Near-Field Characterization and Imaging

ISBN

84-95999-72-2

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

187-192

Název nakladatele

International Center for Numerical Methods in Engineering (CIMNE)

Místo vydání

Barcelona

Místo konání akce

Barcelona

Datum konání akce

8. 6. 2005

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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