Phase stability of a satellite-VLBI-receiver at 22 GHz

Details Phase stability of a satellite-VLBI-receiver at 22 GHz Phase stability of a satellite-VLBI-receiver at 22 GHz

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993exa.....4...11m&link_type=abstract

Experimental Astronomy (ISSN 0922-6435), vol. 4, no. 1, p. 11-20

Astronomy and Astrophysics

Astronomy

1

Astronomical Satellites, Microwave Equipment, Phase Error, Radio Astronomy, Radio Receivers, Satellite Instruments, Very Long Base Interferometry, Centimeter Waves, Spaceborne Astronomy, Superhigh Frequencies

Scientific paper

The phase stability of the Radioastron 22 GHz satellite-very long base interferometry (VLBI)-receiver has been studied by measurements. The resulting performance of the receiver in an interferometer system was evaluated. The maximum phase jitter value of 2 deg due to the receiver causes only marginal degradation for astronomical observations. During observations the requirement of a phase drift value less than 3 deg in the receiver system can be met after an initial warm-up if the overall ambient temperature changes do not exceed 4 deg C.

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