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Phase Calibration System of "Quasar" VLBI Network

Transactions of IAA RAS, issue 20, 396–398 (2009)

Keywords: радиоинтерферометрия со сверхдлинными базами, "Квазар-КВО", РСДБ-комплекс, фазовая калибровка, контроль фазовой стабильности приемной системы, групповая задержка принимаемого сигнала, усилительно-преобразующий тракт

Abstract

Accuracy of geodetic and astrometric VLBI observations is determined by accuracy of measurement of a phase difference or delays of signal received from a radio source on various radiotelescopes. Therefore, VLBI systems used for geodetic applications have to be either extremely phase and delay stable or be accurately calibrated. For these purposes phase calibration system with millimeter level precision are used for "Quasar" network. The calibration system provides the control, over millimetric accuracy, phase stability of VLBI receiving system and a group delay of receiving signal.

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A. Vytnov, D. Ivanov, A. Karpichev. Phase Calibration System of "Quasar" VLBI Network // Transactions of IAA RAS. — 2009. — Issue 20. — P. 396–398.

@article{vytnov2009,
  abstract = {Accuracy of geodetic and astrometric VLBI observations is determined by accuracy of measurement of a phase difference or delays of signal received from a radio source on various radiotelescopes. Therefore, VLBI systems used for geodetic applications have to be either extremely phase and delay stable or be accurately calibrated. For these purposes phase calibration system with millimeter level precision are used for "Quasar" network. The calibration system provides the control, over millimetric accuracy, phase stability of VLBI receiving system and a group delay of receiving signal.},
  author = {A. Vytnov and D. Ivanov and A. Karpichev},
  issue = {20},
  journal = {Transactions of IAA RAS},
  keyword = {радиоинтерферометрия со сверхдлинными базами, "Квазар-КВО", РСДБ-комплекс, фазовая калибровка, контроль фазовой стабильности приемной системы, групповая задержка принимаемого сигнала, усилительно-преобразующий тракт},
  pages = {396--398},
  title = {Phase Calibration System of "Quasar" VLBI Network},
  url = {http://iaaras.ru/en/library/paper/659/},
  year = {2009}
}

TY  - JOUR
TI  - Phase Calibration System of "Quasar" VLBI Network
AU  - Vytnov, A.
AU  - Ivanov, D.
AU  - Karpichev, A.
PY  - 2009
T2  - Transactions of IAA RAS
IS  - 20
SP  - 396
AB  - Accuracy of geodetic and astrometric VLBI observations is determined
by accuracy of measurement of a phase difference or delays of signal
received from a radio source on various radiotelescopes. Therefore,
VLBI systems used for geodetic applications have to be either
extremely phase and delay stable or be accurately calibrated. For
these purposes phase calibration system with millimeter level
precision are used for "Quasar" network. The calibration system
provides the control, over millimetric accuracy, phase stability of
VLBI receiving system and a group delay of receiving signal.
UR  - http://iaaras.ru/en/library/paper/659/
ER  -