An analytical expression for the log-amplitude correlation function for plane wave propagation through anisotropic non-Kolmogorov turbulent atmosphere is derived. The closed-form analytic results are based on the Rytov approximation. These results agree well with wave optics simulation based on the more general Fresnel approximation as well as with numerical evaluations, for low-to-moderate strengths of turbulence. The new expression reduces correctly to the previously published analytic expressions for the cases of plane wave propagation through both nonisotropic Kolmogorov turbulence and isotropic non-Kolmogorov turbulence cases. These results are useful for understanding the potential impact of deviations from the standard isotropic Kolmogorov spectrum.
© 2012 Optical Society of America
Atmospheric and Oceanic Optics
Original Manuscript: June 20, 2012
Revised Manuscript: October 8, 2012
Manuscript Accepted: October 25, 2012
Published: November 27, 2012
V. S. Rao Gudimetla, Richard B. Holmes, and Jim F. Riker, "Analytical expressions for the log-amplitude correlation function for plane wave propagation in anisotropic non-Kolmogorov refractive turbulence," J. Opt. Soc. Am. A 29, 2622-2627 (2012)