Correlation plots of the Siberian Radioheliograph

Sergey Lesovoi; Veronika Kobets

doi:10.12737/article_58f96eeb8fa318.06122835

UDC 52

CORRELATION PLOTS OF THE SIBERIAN RADIOHELIOGRAPH Correlation plots of the Siberian Radioheliograph

АА Аа

Published in Solar-Terrestrial Physics · Volume 3, Issue 1 · Pages 19–25 · Rubric: Results of current research

DOI: https://doi.org/10.12737/article_58f96eeb8fa318.06122835

Received: 21.04.2017 Accepted: 15.03.2026 Language of publication: en-US

Authors

Sergey Lesovoi

ORCID

Veronika Kobets

Sergey Lesovoi

Academic degree: doctor of physical and mathematical sciences

Institute of Solar-Terrestrial Physics SB RAS Russian Federation · Irkutsk

ORCID

Veronika Kobets

Institute of Solar-Terrestrial Physics SB RAS Irkutsk

ABSTRACT

The Siberian Solar Radio Telescope [Grechnev et al., 2011] is now being upgraded. The upgrading is aimed at providing the aperture synthesis imaging in the frequency range 4–8 GHz [Lesovoi et al., 2011, 2014] instead of the single-frequency direct imaging due to the Earth rotation. The first phase of the upgrading is a 48-antenna array — Siberian Radioheliograph. One type of radioheliograph data represents correlation plots [badary.iszf.irk.ru/srhCorrPlot.php]. In evaluating the covariation of two-level signals, these plots are sums of complex correlations, obtained for different antenna pairs. Bearing in mind that correlation of signals from an antenna pair is related to a spatial frequency, we can say that each value of the plot is an integral over a spatial spectrum. Limits of the integration are defined by a task. Only high spatial frequencies are integrated to obtain dynamics of compact sources. The whole spectrum is integrated to reach maximum sensitivity. We show that the covariation of two-level values accurate to Van Vleck correction is a correlation coefficient of these values.

KEYWORDS

radio telescope, correlation, spatial spectrum

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Editor-in-Chief

Geliy Zherebtsov

solater@iszf.irk.ru

Deputy Editor-in-Chief

Aleksandr Stepanov

stepanov@gaoran.ru

Deputy Editor-in-Chief

Alexander Potapov

potapov@iszf.irk.ru

Executive Secretary of Editorial Board

Natalia Polyushkina

npol@iszf.irk.ru

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Lesovoi S. V., Kobets V. S. Correlation plots of the Siberian Radioheliograph // Solar-Terrestrial Physics. 2017. no. 1. pp. 19-25. DOI: https://doi.org/10.12737/article_58f96eeb8fa318.06122835. (Date of access 12.11.2026).

MLA

Sergey Lesovoi, Kobets V. S.. "Correlation plots of the Siberian Radioheliograph." Solar-Terrestrial Physics 3.1 (2017): 19-25. DOI: https://doi.org/10.12737/article_58f96eeb8fa318.06122835.

APA

Lesovoi S. V., Kobets V. S. (2017). Correlation plots of the Siberian Radioheliograph. Solar-Terrestrial Physics, 3(1), 19-25. https://doi.org/10.12737/article_58f96eeb8fa318.06122835

Chicago

Sergey Lesovoi, Kobets V. S.. "Correlation plots of the Siberian Radioheliograph." Solar-Terrestrial Physics 3, no. 1 (2017): 19-25. https://doi.org/10.12737/article_58f96eeb8fa318.06122835.

WIKI

{{cite journal | author = Lesovoi S. V., Kobets V. S. | title = Correlation plots of the Siberian Radioheliograph | journal = Solar-Terrestrial Physics | year = 2017 | volume = 3 | issue = 1 | pages = 19-25 | doi = 10.12737/article_58f96eeb8fa318.06122835 }}

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CORRELATION PLOTS OF THE SIBERIAN RADIOHELIOGRAPH Correlation plots of the Siberian Radioheliograph

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