Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011astbu..66..109t&link_type=abstract
Astrophysical Bulletin, Volume 66, Issue 1, pp.109-122
Astronomy and Astrophysics
Astronomy
Techniques: Radar Astronomy, Methods: Data Analysis
Scientific paper
A new Data Acquisition and Control System for performing continuum radio-astronomical observations with the RATAN-600 radio telescope is presented. One of the "building blocks" of the system is the Embedded Radiometric Data Acquisition System (ER-DAS) developed at the RATAN-600. It is a measurement facility meant for digitizing and reducing radiometer signals and for transmitting the result of these operations via Ethernet networks. ER-DAS system is shown to have a low self-noise level and to lack 1/ f-type noise. The measurement facility is shown to operate efficiently in radio-astronomical observations. Radiometric measurements of the parameters of high-sensitivity radiometers are illustrated in the case of the measurements of radiometer gain fluctuations.
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