The New Phase-calibration System of the Geodetic Observatory Wettzell
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F14%3A00241175" target="_blank" >RIV/68407700:21340/14:00241175 - isvavai.cz</a>
Výsledek na webu
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DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
The New Phase-calibration System of the Geodetic Observatory Wettzell
Popis výsledku v původním jazyce
In order to reduce systematic errors in VLBI operations, the one-way delays of the system are captured by injecting a narrow pulse train into the detection chain through an input coupler located near the front-end of the receiver chain. Such a pulse train generates calibration tones in the observation bandwidth, which are equally spaced by the repetition rate of the pulse train. In geodetic VLBI, tones with 1 MHz spacing are used. The tones propagate through the entire detection chain and are recorded along with the observed signal. They are extracted in post processing and are used for keeping track of the VLBI receiver delays.
Název v anglickém jazyce
The New Phase-calibration System of the Geodetic Observatory Wettzell
Popis výsledku anglicky
In order to reduce systematic errors in VLBI operations, the one-way delays of the system are captured by injecting a narrow pulse train into the detection chain through an input coupler located near the front-end of the receiver chain. Such a pulse train generates calibration tones in the observation bandwidth, which are equally spaced by the repetition rate of the pulse train. In geodetic VLBI, tones with 1 MHz spacing are used. The tones propagate through the entire detection chain and are recorded along with the observed signal. They are extracted in post processing and are used for keeping track of the VLBI receiver delays.
Klasifikace
Druh
O - Ostatní výsledky
CEP obor
JB - Senzory, čidla, měření a regulace
OECD FORD obor
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Návaznosti výsledku
Projekt
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Návaznosti
S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2014
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů