NDLI: Features of optical image jitter in a random medium with a finite outer scale

Content Provider	IEEE Xplore Digital Library
Author	Bolbasova, L.A. Kovadlo, P.G. Lukin, V.P. Nosov, V.V. Torgaev, A.V.
Copyright Year	2013
Description	Author affiliation: Inst. of Solar Terrestrial Phys., Irkutsk, Russia (Kovadlo, P.G.) \|\| V.E. Zuev Inst. of Atmos. Opt., Tomsk, Russia (Bolbasova, L.A.; Lukin, V.P.; Nosov, V.V.; Torgaev, A.V.)
Abstract	Features of optical wave fluctuations while propagating through a randomly inhomogeneous turbulent medium with a finite outer scale are considered, including conditions when areas with dominating influence of one large scale coherent structure are observed in the atmosphere, for which the spectrum of atmospheric turbulence can differ significantly from the Kolmogorov model spectrum. Using an approximate model of the spectrum for coherent turbulence, described earlier in our works, the variance of jitter of an optical image is calculated (under the applicability condition for the smooth perturbation method). The comparison of these equations with known similar equations for Kolmogorov turbulence has shown that the variance of fluctuations is significantly weaker in coherent turbulence than in the Kolmogorov theory under similar conditions. This means that phase fluctuations of optical radiation decrease significantly in coherent turbulence. The importance of this conclusion is noted for interpretation of the results of optical sounding of atmospheric turbulence.
Starting Page	325
Ending Page	326
File Size	2640292
Page Count	2
File Format	PDF
ISSN	21601534
e-ISBN	9781479900183
DOI	10.1109/CAOL.2013.6657624
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-09
Publisher Place	Ukraine
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fluctuations Atmospheric modeling Jitter Telescopes Optical imaging Mathematical model
Content Type	Text
Resource Type	Article

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