Optika Atmosfery i Okeana Journal

Vol. 18, issue 10, article # 3

Koryabin A. V., Moradi M., Shmalgausen V. I. Simulation of anisoplanatism of an adaptive optical system in the turbulent atmosphere. // Atmospheric and oceanic optics. 2005. V. 18. No. 10. P. 773-777. PDF
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Abstract:

A designed software for simulating the effect of anisoplanatism on operation of a phase-conjugation adaptive optical system in turbulent atmosphere is described. Atmospheric turbulence is simulated with a system of moving random phase screens with a preset statistics. The software developed allows calculation of instantaneous and averaged errors of phase correction at different angular separations of the reference source (beacon) and the observation site in a wide range of parameters of the adaptive system and atmospheric inhomogeneities. Such an approach enables one both to estimate residual errors of aberration compensation in the adaptive system and to calculate instantaneous characteristics of the entire system, namely, the point spread function (PSF) and the optical transfer function (OTF), as well as to estimate the angular dimension of the isoplanatism region.