Influence of turbulent fluctuations of refractive index on PSF

Fedor V. Shugaev; Evgeni N. Terentiev; Ludmilla S. Shtemenko; Elena A. Bratinkova

doi:10.1117/12.462509

20 March 2003 Influence of turbulent fluctuations of refractive index on PSF

Fedor V. Shugaev, Evgeni N. Terentiev, Ludmilla S. Shtemenko, Elena A. Bratinkova

Proceedings Volume 4884, Optics in Atmospheric Propagation and Adaptive Systems V; (2003) https://doi.org/10.1117/12.462509
Event: International Symposium on Remote Sensing, 2002, Crete, Greece

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 D_n(r) has the form: D_n(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.

Citation Download Citation

Fedor V. Shugaev, Evgeni N. Terentiev, Ludmilla S. Shtemenko, and Elena A. Bratinkova "Influence of turbulent fluctuations of refractive index on PSF", Proc. SPIE 4884, Optics in Atmospheric Propagation and Adaptive Systems V, (20 March 2003); https://doi.org/10.1117/12.462509

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