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Proceedings Paper

Estimation of the density of dislocations of the wavefront due to atmosphere
Author(s): Dmitri Kouznetsov; Roberto Ortega-Martinez
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Paper Abstract

Distortions of the wave front in the Earth 'a atmosphere is discuued. The approximation of distortions of the wave localized in the thin layer is considered. The model to construct random realizations of the field with the given structure function is suggested. But the lower atmospheric layers give relatively small contribution to the distortion of wavefronts. In the first approximation the role of the thickneBB of the atmosphere may be described by the linear diffraction equation. It gives the estimation of the density of the dislocations of the wave front of the initial plane wave. It is shown that for this case this density is less than 1 dislocation per 100 square meters, at least for the good seeing condition. Recommendations to use flexible mirrors if the optical path in the atmosphere is leas than 10 km. and the segment mirror if the optical path is greater than 50 km. are suggested. The short program to simulate the wave fronts realizations to count dislocations is supplied.

Paper Details

Date Published: 29 June 1994
PDF: 10 pages
Proc. SPIE 2222, Atmospheric Propagation and Remote Sensing III, (29 June 1994); doi: 10.1117/12.178012
Show Author Affiliations
Dmitri Kouznetsov, P.N. Lebedev Physical Institute (Russia), Univ. Nacional Autonoma de Mexico (Mexico)
Roberto Ortega-Martinez, Univ. Nacional Autonoma de Mexico (Mexico)

Published in SPIE Proceedings Vol. 2222:
Atmospheric Propagation and Remote Sensing III
Walter A. Flood; Walter B. Miller, Editor(s)

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