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

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

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 -