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VLBI receiver chain monitoring

The result's identifiers

  • 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>

Alternative languages

  • 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

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    JB - Sensors, detecting elements, measurement and regulation

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2013

  • Confidentiality

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

Data specific for result type

  • 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