Monte Carlo technique vs. brightness function approach for problem of speckle-field propagation through a turbulent medium

Vadim V. Dudorov; Mikhail A. Vorontsov; Valeriy V. Kolosov

doi:10.1117/12.723053

1 November 2006 Monte Carlo technique vs. brightness function approach for problem of speckle-field propagation through a turbulent medium

Vadim V. Dudorov, Mikhail A. Vorontsov, Valeriy V. Kolosov

Author Affiliations +

Proceedings Volume 6522, Thirteenth Joint International Symposium on Atmospheric and Ocean Optics/ Atmospheric Physics; 65220N (2006) https://doi.org/10.1117/12.723053
Event: Thirteenth Joint International Symposium on Atmospheric and Ocean Optics/ Atmospheric Physics, 2006, Tomsk, Russian Federation

Abstract

The problem of propagation in a turbulent atmosphere of the speckle field reflected from rough surface (the scattered field) is considered. Two methods of numerical analysis of the averaged field characteristics are compared: the Monte- Carlo method based on solution of a parabolic equation and the method of solving a transfer equation Fourier-conjugate to the second order field momentum equation. It is demonstrated that the use of the transfer equation allows us to considerably (up to several orders) shorten the time taken by numerical modeling, which is important for this type of problems. It was found that in the case of frozen (stationary) turbulence, the extent of turbulence manifestation but insignificantly affects the mean correlation field characteristics.

Citation Download Citation

Vadim V. Dudorov, Mikhail A. Vorontsov, and Valeriy V. Kolosov "Monte Carlo technique vs. brightness function approach for problem of speckle-field propagation through a turbulent medium", Proc. SPIE 6522, Thirteenth Joint International Symposium on Atmospheric and Ocean Optics/ Atmospheric Physics, 65220N (1 November 2006); https://doi.org/10.1117/12.723053

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