• Medientyp: E-Artikel
  • Titel: The speckle-interferometric images modelling of artificial Earth satellites in problems of near-Earth astronomy
  • Beteiligte: Aleshin, Vladimir P.; Grishin, Eugene A.; Ivlev, Oleg A.; Novgorodtsev, Dmitry D.; Shargorodsky, Victor D.
  • Erschienen: Walter de Gruyter GmbH, 2018
  • Erschienen in: Open Astronomy, 27 (2018) 1, Seite 120-125
  • Sprache: Nicht zu entscheiden
  • DOI: 10.1515/astro-2018-0020
  • ISSN: 2543-6376
  • Schlagwörter: Space and Planetary Science ; Astronomy and Astrophysics
  • Entstehung:
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  • Beschreibung: Abstract The article represents the results of efficiency estimation for perspective observation facilities of near-Earth astronomy in terms of the AES (artificial Earth’s satellite) optical images obtaining and quality. A mathematical method for modeling optical images based on the induced virtual environment is proposed . A speckle interferometric image registration scheme and bispectral processing are reviewed. Upon modelling, the real speckle interferometric images of stars have been used as scattering functions; the AES orbits and geometry have been set in reliance on the real AES orbits and 3D-shapes. Additionally, photon and readout noises have been modelled. A large set of different variants of the AES orbits and 3D-shapes is reviewed.Anon-linear distortion problem is analyzed. The modelling has been performed under various atmosphere turbulence conditions (2”, 4”). The following characteristics have been estimated: number of frames to accumulate depending on the AES orbit and shape, noise intensity, type and parameters of bispectral processing, energy characteristics.
  • Zugangsstatus: Freier Zugang