Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983azh....60..172b&link_type=abstract
(Astronomicheskii Zhurnal, vol. 60, Jan.-Feb. 1983, p. 172-180) Soviet Astronomy (ISSN 0038-5301), vol. 27, Jan.-Feb. 1983, p. 9
Astronomy and Astrophysics
Astronomy
Atmospheric Turbulence, Modulation Transfer Function, Optical Correction Procedure, Telescopes, Annuli, Apertures, Instrument Compensation, Integral Equations, Wave Fronts
Scientific paper
A discussion is given of the problem of recording a long-exposure, averaged image of an object viewed through the turbulent atmosphere by means of adaptive compensation for the seeing excursion of the instantaneous image. Analytic expressions are derived for the modulation transfer function of an atmosphere-telescope system involving adaptive compensation for random wavefront tilts, and the compensated tilt is estimated for a telescope aperture of arbitrary shape. The general relations yield MTF's for systems having circular and annular telescope apertures, refining the results of D. L. Fried and A. T. Young.
Bakut Peter A.
Ryakhin A. D.
Sviridov Konstantin N.
Ustinov N. D.
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