On the distribution of probability density of the intensity fluctuations of the scattered radiation focused laser beam (0.63 mkm) in the near-ground atmosphere in haze

N. A. Vostretsov

doi:10.1117/12.2540712

18 December 2019 On the distribution of probability density of the intensity fluctuations of the scattered radiation focused laser beam (0.63 μm) in the near-ground atmosphere in haze

N. A. Vostretsov

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Proceedings Volume 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 1120822 (2019) https://doi.org/10.1117/12.2540712
Event: XXV International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2019, Novosibirsk, Russian Federation

Abstract

The distribution of the probability density of fluctuations of the intensity of the scattered radiation of a focused laser beam (0.63 μm) in the near – ground (surface) atmosphere in a haze on a 130 m long path was measured. It is established that the probability density distribution has one maximum. The distribution had the right asymmetry or had a form close to symmetric. The form of distribution does not depend on the wind speed and its perpendicular component to the path at close atmospheric conditions, at close values of the scattering coefficient and the size of the haze particles. Most experimental probability density distributions are approximated by the gamma  distribution.

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N. A. Vostretsov "On the distribution of probability density of the intensity fluctuations of the scattered radiation focused laser beam (0.63 μm) in the near-ground atmosphere in haze", Proc. SPIE 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 1120822 (18 December 2019); https://doi.org/10.1117/12.2540712

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KEYWORDS

Air contamination

Scattering

Photodetectors

Atmospheric optics

Laser scattering

Statistical analysis

Atmospheric particles

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