The New Phase-calibration System of the Geodetic Observatory Wettzell
The result's identifiers
Result code in 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>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
The New Phase-calibration System of the Geodetic Observatory Wettzell
Original language description
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.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
JB - Sensors, detecting elements, measurement and regulation
OECD FORD branch
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Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů