... study

To the best of the author's knowledge, the analytical results referred to here do not yet exist in the published literarure, although they are relatively straightforward to obtain. While the analysis of Sasiela (1994) is based in the Rytov approximation, less sophisticated Fourier domain methods that do not account for scintillation may also be used to compute turbulence-induced phase variances. The spatial frequency attenuation by the aperture is accounted for in Fourier domain by a complex filtering function, and focal anisoplanatism may be estimated for a layered turbulence profile by summing over the layers with a varying argument in the aperture filtering function.

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