1 July 1991 Expressions for the spherical-wave-structure function based on a bump spectrum model for the index of refraction
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Abstract
New spectra models have recently been developed for the spatial power spectra of temperature and refractive index fluctuations in the atmospheric boundary layer showing the characteristic 'bump' just prior to the dissipation ranges. Theoretical work involving these new models has led to new expressions for the phase structure function associated with a plane optical wave, although most experimental work has involved spherical waves. Following techniques similar to those used for the plane wave analysis, new expressions valid in geometrical and diffraction regimes are developed here for the phase structure function of a spherical optical wave propagating through clear-air atmospheric turbulence. Useful asymptotic formulas for small separation distances and the inertial subrange are derived from these general expressions.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Christina E. Richardson, Larry C. Andrews, "Expressions for the spherical-wave-structure function based on a bump spectrum model for the index of refraction", Proc. SPIE 1487, Propagation Engineering: Fourth in a Series, (1 July 1991); doi: 10.1117/12.46546; https://doi.org/10.1117/12.46546
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