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  4. Calculating structure function constant from measured Cn2 in non-Kolmogorov and anisotropic turbulence including inner scale effects
 
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2019
Journal Article
Title

Calculating structure function constant from measured Cn2 in non-Kolmogorov and anisotropic turbulence including inner scale effects

Abstract
Optical scintillometers used to characterize turbulence are based on assumptions of isotropic, Kolmogorov turbulence following a 𝜅−11/3 spectral power law. However, experimental data suggest that the turbulence may at times be anisotropic and non-Kolmogorov. In this work, consideration is given to converting from the structure function constant, 𝐶2𝑛, based on isotropic, Kolmogorov statistics to its generalized anisotropic, non-Kolmogorov form, 𝐶 2𝑛, for point receiver and large-aperture receiver scintillometers. It is found that 𝐶&2𝑛 is dependent not only on power law and anisotropy parameters but that it is also a function of inner scale. The large-aperture scintillometer is found to be less sensitive to power law and inner scale than the point-aperture receiver. The optical parameters of two-fielded scintillometers are modeled as practical examples of these behaviors.
Author(s)
Beason, Melissa
Townes Institute Science and Technology Experimentation Facility, Center for Research in Electro Optics and Lasers, University of Central Florida
Andrews, Larry C.
Townes Institute Science and Technology Experimentation Facility, Center for Research in Electro Optics and Lasers, University of Central Florida
Toselli, Italo  
Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung IOSB  
Journal
Applied optics  
Open Access
DOI
10.1364/AO.58.006813
Language
English
Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung IOSB  
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