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Telecommunications and Radio Engineering
SJR: 0.203 SNIP: 0.44 CiteScore™: 1

ISSN Imprimer: 0040-2508
ISSN En ligne: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v73.i19.60
pages 1771-1779

ON THE POSSIBILITY OF THE ATMOSPHERE CONDITION DIAGNOSTICS WITH THE MULTIBEAM INTERFEROMETER

Y. V. Kornienko
O.Ya. Usikov Institute for Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12 Academician Proskura St., Kharkiv 61085, Ukraine
V.V. Pugach
A.Ya. Usikov Institute for Radiophysics and Electronics
Sergey I. Skuratovskiy
O.Ya. Usikov Institute for Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12 Academician Proskura St., Kharkiv 61085, Ukraine

RÉSUMÉ

The influence of the atmosphere on the results of astronomic observations from the Earth surface dramatically decreases the resolution of obtained images. Many methods of fight against it require the information on atmospheric distortions. Obtaining of such information in practical case is usually carried out by using special wavefront sensors that operate on the basis of the natural or laser reference star. But there is the method that allows obtaining information on phase distortions in the atmosphere directly during the process of the observation of any object with the multibeam interferometer. Averaged over subapertures phases are the side result of image forming with such instrument. By their interpolation the phase distortions distribution over the aperture may be recovered. It was shown that the reconstruction accuracy is acceptable while atmospheric inhomogeneities exceed the distance between subapertures. The dependences of reconstruction accuracy on peculiar inhomogeneities size and mean square deviation of phase distortions are presented. The research results may be useful for atmospheric researches, as well as for fight against its influence, for example, first order adaptive correction.


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