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Cohen class time-frequency mapping in the analysis of the non-stationary parameters of a wave gaussian beam at the atmospheric path output
Author(s): T. I. Arsenyan; E. A. Babanin; A. V. Blank; R. F. Stryungis; N. A. Suhareva
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Paper Abstract

The experimental results of the time-frequency maps structure research are presented. The maps were received on the basis of Cohen class square mapping, particularly, using Wigner-Ville pseudo-distribution. Quasi synchronous monitoring of the atmospheric channel conditions and of a beam intensity spatial distribution is realized by means of the high-speed cameras of computer vision. The cameras record dynamics of a profile intensity distribution of a single-mode collimated signal beam at the receiving plane and that of the reflected sounding multimode beam. At an input of the long distance atmospheric path there comes the generalized Gaussian signal beam with the defined Rayleigh length and wavefront curvature. At the path output the spatial moments of the beam from the zero to the fourth orders are registered. The spatial moments allow to describe in details beam distortions along the propagation path with the temporary resolution not less than 1 ms.

Paper Details

Date Published: 13 December 2018
PDF: 12 pages
Proc. SPIE 10833, 24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 108332Q (13 December 2018); doi: 10.1117/12.2504659
Show Author Affiliations
T. I. Arsenyan, M.V. Lomonosov Moscow State Univ. (Russian Federation)
E. A. Babanin, M.V. Lomonosov Moscow State Univ. (Russian Federation)
A. V. Blank, M.V. Lomonosov Moscow State Univ. (Russian Federation)
S.P. Korolev Rocket and Space Corp. Energia (Russian Federation)
R. F. Stryungis, M.V. Lomonosov Moscow State Univ. (Russian Federation)
N. A. Suhareva, M.V. Lomonosov Moscow State Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 10833:
24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics
Gennadii G. Matvienko; Oleg A. Romanovskii, Editor(s)

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