VLBI receiver chain monitoring

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F13%3A00214245" target="_blank" >RIV/68407700:21340/13:00214245 - isvavai.cz</a>
Alternative codes found
RIV/67985882:_____/13:00396960
Result on the web
<a href="http://dx.doi.org/10.1109/EFTF-IFC.2013.6702153" target="_blank" >http://dx.doi.org/10.1109/EFTF-IFC.2013.6702153</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/EFTF-IFC.2013.6702153" target="_blank" >10.1109/EFTF-IFC.2013.6702153</a>

Result language
angličtina
Original language name
VLBI receiver chain monitoring
Original language description
The most demanding goal of the Global Geodetic Observing System initiative is the definition of station positions to an accuracy of 1mm and the corresponding velocities to 0.1 mm/year. The main remaining sources of error are caused by systematics, leading to intra- and inter- technique biases. In this work, we have focused on Very Long Base Interferometry (VLBI) and phase calibration generator currently in operation. This unit is injecting calibration tones into the detection chain through an input coupler located near the input of the antenna. The tones propagate further through entire detection chain and are recorded with the observed signal. Then they are extracted in post processing. These tones are generated out of an atomic frequency standard. The supplied frequency is significantly influenced by temperature and mechanical changes since usually a long cable is employed to bring the frequency to the calibration unit. To monitor the electrical length of the cable, calibration with
Czech name
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Czech description
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Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
2013 Joint European Frequency and Time Forum and International Frequency Control Symposium (EFTF/IFC)
ISBN
978-1-4799-0342-9
ISSN
—
e-ISSN
—
Number of pages
3
Pages from-to
854-856
Publisher name
IEEE Ultrasonics, Ferroelectrics, and Frequency Control Society
Place of publication
Piscataway
Event location
Prague
Event date
Jul 21, 2013
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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