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Comparison of the Possibilities of Optical and Radio Astronomy Methods for Measuring the Parameters of Large Antennae

N. A. Dugin, A. V. Kalinin, Ju. V. Tikhomirov, V. V. Petrov, G. B. Buzik, V. O. Medyannikov, V. V. Shishkina

Transactions of IAA RAS, issue 48, 41–49 (2019)

Keywords: antenna parameters, measurement methods, laser ranging, radio astronomy, radio holography.

Abstract

The article focuses on the experimented results of a survey of large-sized antennae using laser ranging and a preliminary estimation of antenna characteristics dependence on the operating frequency. A comparison is made with the results obtained by radio astronomy and radio holographic methods. An analysis of the possibilities for estimating the large-sized antennae parameters using optical measurements shows that the advantage of these methods is that they give separate values of the standard deviation of the mirror surface from the calculated one for the primary and secondary reflectors. The radio astronomy method provides “integral” data on antenna parameters which do not allow to determine specific areas of errors sources but are the most accurate from the point of view of evaluating the system effectiveness. The impact of variable loads, including weight and temperature distortions of mirrors, on the characteristics of antennae can also be effectively investigated by radio astronomy or radio holographic methods. Comparison of the results of both methods allows to improve the accuracy of estimates of the large antenna systems parameters.

Citation

Text

BibTeX

RIS

N. A. Dugin, A. V. Kalinin, Ju. V. Tikhomirov, V. V. Petrov, G. B. Buzik, V. O. Medyannikov, V. V. Shishkina. Comparison of the Possibilities of Optical and Radio Astronomy Methods for Measuring the Parameters of Large Antennae // Transactions of IAA RAS. — 2019. — Issue 48. — P. 41–49.

@article{dugin2019,
  abstract = {The article focuses on the experimented results of a survey of large-sized antennae using laser ranging and a preliminary estimation of antenna characteristics dependence on the operating frequency. A comparison is made with the results obtained by radio astronomy and radio holographic methods.
An analysis of the possibilities for estimating the large-sized antennae parameters using optical measurements shows that the advantage of these methods is that they give separate values of the standard deviation of the mirror surface from the calculated one for the primary and secondary reflectors. The radio astronomy method provides “integral” data on antenna parameters which do not allow to determine specific areas of errors sources but are the most accurate from the point of view of evaluating the system effectiveness. The impact of variable loads, including weight and temperature distortions of mirrors, on the characteristics of antennae can also be effectively investigated by radio astronomy or radio holographic methods.
Comparison of the results of both methods allows to improve the accuracy of estimates of the large antenna systems parameters.},
  author = {N.~A. Dugin and A.~V. Kalinin and Ju.~V. Tikhomirov and V.~V. Petrov and G.~B. Buzik and V.~O. Medyannikov and V.~V. Shishkina},
  doi = {10.32876/ApplAstron.48.41-49},
  issue = {48},
  journal = {Transactions of IAA RAS},
  keyword = {antenna parameters, measurement methods, laser ranging, radio astronomy, radio holography},
  pages = {41--49},
  title = {Comparison of the Possibilities of Optical and Radio Astronomy Methods for Measuring the Parameters of Large Antennae},
  url = {http://iaaras.ru/en/library/paper/1951/},
  year = {2019}
}

TY  - JOUR
TI  - Comparison of the Possibilities of Optical and Radio Astronomy Methods for Measuring the Parameters of Large Antennae
AU  - Dugin, N. A.
AU  - Kalinin, A. V.
AU  - Tikhomirov, Ju. V.
AU  - Petrov, V. V.
AU  - Buzik, G. B.
AU  - Medyannikov, V. O.
AU  - Shishkina, V. V.
PY  - 2019
T2  - Transactions of IAA RAS
IS  - 48
SP  - 41
AB  - The article focuses on the experimented results of a survey of large-
sized antennae using laser ranging and a preliminary estimation of
antenna characteristics dependence on the operating frequency. A
comparison is made with the results obtained by radio astronomy and
radio holographic methods.  An analysis of the possibilities for
estimating the large-sized antennae parameters using optical
measurements shows that the advantage of these methods is that they
give separate values of the standard deviation of the mirror surface
from the calculated one for the primary and secondary reflectors. The
radio astronomy method provides “integral” data on antenna parameters
which do not allow to determine specific areas of errors sources but
are the most accurate from the point of view of evaluating the system
effectiveness. The impact of variable loads, including weight and
temperature distortions of mirrors, on the characteristics of
antennae can also be effectively investigated by radio astronomy or
radio holographic methods.  Comparison of the results of both methods
allows to improve the accuracy of estimates of the large antenna
systems parameters.
DO  - 10.32876/ApplAstron.48.41-49
UR  - http://iaaras.ru/en/library/paper/1951/
ER  -