Numerical simulation of backscatter enhancement effect in a non-Kolmogorov anisotropic turbulent medium
A.V. Falits, V.A. Banakh
V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, Tomsk, Russia
Keywords: backscatter enhancement, turbulence, spatially limited beam
Abstract
The paper presents a tool for numerical simulation of the backscatter enhancement effect associated with double-pass propagation of laser radiation passing through an anisotropic non-Kolmogorov turbulence. It is shown that for variety of power-law exponents of refractive-index fluctuations, all other conditions being equal, the value of the enhancement factor also changes: it increases when the fluctuation spectrum becomes more and more low-frequency. For the anisotropic medium, the two-dimensional distribution of the enhancement factor allows remotely determining the spatial orientation of anisotropic inhomogeneities in a randomly inhomogeneous medium.
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