Abstract
This paper presents the results of theoretical study of the temporary frequent spectra of fluctuations of optical radiation passsing a turbulent atmosphere in snowfall. For weak fluctuations in the optical intensity the temporary frequency spectra of spatial-limited Gaussian beam are considered at propagation in turbulent atmosphere, containing a large in comparison with length of a wave of optical radiation a scattering particles. The temporary spectra of fluctuations of intensity are received in that case, when particles downfall with speed, linearly dependent on the size of the scattering particle, and simultaneously lead on the random wind. Good coincidence of theoretical results to experimental data is received.
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