Experimental evaluation of the influence of fast movement on virtual antenna arrays
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F19%3APU144155" target="_blank" >RIV/00216305:26220/19:PU144155 - isvavai.cz</a>
Výsledek na webu
<a href="https://ieeexplore.ieee.org/document/8727202" target="_blank" >https://ieeexplore.ieee.org/document/8727202</a>
DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Experimental evaluation of the influence of fast movement on virtual antenna arrays
Popis výsledku v původním jazyce
Virtual antenna arrays are employed on the roof of high-speed trains to sound the channel between a train and a fixed base station. Because high-speed trains are moving fast during such a measurement, high Doppler shifts are experienced. In this paper, we evaluate the influence of fast movement on measurements with virtual antenna arrays if algorithms for static scenarios are employed. We have built a laboratory setup to test common algorithms such as the Bartlett beamformer. Our laboratory setup allows to compare the performance of algorithms at standstill to the performance of the same algorithms at different velocities. We show that the estimated power angular spectrum changes up to 20 dB in magnitude if we apply the same algorithm as in the static scenario. The Doppler effect also causes an angular shift. We experience that the difference in circular variance is 7.4 %. The measurement results show that DOA estimation algorithms that do not consider Doppler are not consistent anymore at fast movement
Název v anglickém jazyce
Experimental evaluation of the influence of fast movement on virtual antenna arrays
Popis výsledku anglicky
Virtual antenna arrays are employed on the roof of high-speed trains to sound the channel between a train and a fixed base station. Because high-speed trains are moving fast during such a measurement, high Doppler shifts are experienced. In this paper, we evaluate the influence of fast movement on measurements with virtual antenna arrays if algorithms for static scenarios are employed. We have built a laboratory setup to test common algorithms such as the Bartlett beamformer. Our laboratory setup allows to compare the performance of algorithms at standstill to the performance of the same algorithms at different velocities. We show that the estimated power angular spectrum changes up to 20 dB in magnitude if we apply the same algorithm as in the static scenario. The Doppler effect also causes an angular shift. We experience that the difference in circular variance is 7.4 %. The measurement results show that DOA estimation algorithms that do not consider Doppler are not consistent anymore at fast movement
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
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OECD FORD obor
10304 - Nuclear physics
Návaznosti výsledku
Projekt
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Návaznosti
S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2019
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
WSA 2019 - 23rd International ITG Workshop on Smart Antennas
ISBN
9783800749409
ISSN
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e-ISSN
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Počet stran výsledku
5
Strana od-do
105-109
Název nakladatele
VDE Verlag GmbH
Místo vydání
Vienna
Místo konání akce
Vienna
Datum konání akce
24. 4. 2019
Typ akce podle státní příslušnosti
WRD - Celosvětová akce
Kód UT WoS článku
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