Delay Stability Analysis of RT-13 Radio Telescope Receiving and Recording Equipment Based on Correlation Processing of VLBI Observations
Transactions of IAA RAS, issue 51, 42–48 (2019)
DOI: 10.32876/ApplAstron.51.42-48
Keywords: radio interferometer, VLBI, tri-band receiver, software correlator, signal-to-noise ratio, fringe delay, group delay, delay stability, RASFX
About the paper Full textAbstract
One of the main radio interferometer characteristics is the accuracy of determining the received signal group delay. The group delay variation is likely to be influenced to a great extent by the instrumental delay stability of the receiving and recording equipment. The paper presents measurement techniques and the results of radio telescope RT13 receiving and recording equipment delay stability in S-, X-, Ka–bands based on correlation processing of VLBI observations. A 1-hour VLBI session was carried out with cosmic radio source continuous tracking. The observed and calculated delay differences were computed with Quasar software. Signal-to-noise ratio and group delay standard deviation were measured and compared with the calculated ones. The dependences of signal-to-noise ratio and delay Allan deviation on averaging time are obtained.
Citation
Yu. V. Vekshin, V. O. Ken. Delay Stability Analysis of RT-13 Radio Telescope Receiving and Recording Equipment Based on Correlation Processing of VLBI Observations // Transactions of IAA RAS. — 2019. — Issue 51. — P. 42–48.
@article{vekshin2019,
abstract = {One of the main radio interferometer characteristics is the accuracy of determining the received signal group delay. The group delay variation is likely to be influenced to a great extent by the instrumental delay stability of the receiving and recording equipment.
The paper presents measurement techniques and the results of radio telescope RT13 receiving and recording equipment delay stability in S-, X-, Ka–bands based on correlation processing of VLBI observations. A 1-hour VLBI session was carried out with cosmic radio source continuous tracking. The observed and calculated delay differences were computed with Quasar software.
Signal-to-noise ratio and group delay standard deviation were measured and compared with the calculated ones. The dependences of signal-to-noise ratio and delay Allan deviation on averaging time are obtained.},
author = {Yu.~V. Vekshin and V.~O. Ken},
doi = {10.32876/ApplAstron.51.42-48},
issue = {51},
journal = {Transactions of IAA RAS},
keyword = {radio interferometer, VLBI, tri-band receiver, software correlator, signal-to-noise ratio, fringe delay, group delay, delay stability, RASFX},
pages = {42--48},
title = {Delay Stability Analysis of RT-13 Radio Telescope Receiving and Recording Equipment Based on Correlation Processing of VLBI Observations},
url = {http://iaaras.ru/en/library/paper/2009/},
year = {2019}
}
TY - JOUR
TI - Delay Stability Analysis of RT-13 Radio Telescope Receiving and Recording Equipment Based on Correlation Processing of VLBI Observations
AU - Vekshin, Yu. V.
AU - Ken, V. O.
PY - 2019
T2 - Transactions of IAA RAS
IS - 51
SP - 42
AB - One of the main radio interferometer characteristics is the accuracy
of determining the received signal group delay. The group delay
variation is likely to be influenced to a great extent by the
instrumental delay stability of the receiving and recording
equipment. The paper presents measurement techniques and the results
of radio telescope RT13 receiving and recording equipment delay
stability in S-, X-, Ka–bands based on correlation processing of VLBI
observations. A 1-hour VLBI session was carried out with cosmic radio
source continuous tracking. The observed and calculated delay
differences were computed with Quasar software. Signal-to-noise
ratio and group delay standard deviation were measured and compared
with the calculated ones. The dependences of signal-to-noise ratio
and delay Allan deviation on averaging time are obtained.
DO - 10.32876/ApplAstron.51.42-48
UR - http://iaaras.ru/en/library/paper/2009/
ER -