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Proceedings Paper

Influence of turbulent fluctuations of refractive index on PSF
Author(s): Fedor V. Shugaev; Evgeni N. Terentiev; Ludmilla S. Shtemenko; Elena A. Bratinkova
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Paper Abstract

Statistical properties of a turbulent flow have been investigated experimentally in a shock tube with a turbulence grid. The fluctuations of the refractive index were detected with the aid of a laser-schlieren technique. It was found that the structure function Dn(r) has the form: Dn(r)=c(1-exp(-br)sin(ar)/(ar)),a,b,c being constants, in contrast with Kolmogorov's two-thirds law. These data were used in order to determine the PSF and MTF. Numerical results for the image of an object in a turbulent flow are also presented.

Paper Details

Date Published: 20 March 2003
PDF: 9 pages
Proc. SPIE 4884, Optics in Atmospheric Propagation and Adaptive Systems V, (20 March 2003); doi: 10.1117/12.462509
Show Author Affiliations
Fedor V. Shugaev, M.V. Lomonosov Moscow State Univ. (Russia)
Evgeni N. Terentiev, M.V. Lomonosov Moscow State Univ. (Russia)
Ludmilla S. Shtemenko, M.V. Lomonosov Moscow State Univ. (Russia)
Elena A. Bratinkova, M.V. Lomonosov Moscow State Univ. (Russia)


Published in SPIE Proceedings Vol. 4884:
Optics in Atmospheric Propagation and Adaptive Systems V
Anton Kohnle; John D. Gonglewski, Editor(s)

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