New look at bump spectra models for temperature and refractive-index fluctuations

Elizabeth A. Sisterman; Larry C. Andrews

doi:10.1117/12.46575

1 July 1991 New look at bump spectra models for temperature and refractive-index fluctuations

Elizabeth A. Sisterman, Larry C. Andrews

Proceedings Volume 1487, Propagation Engineering: Fourth in a Series; (1991) https://doi.org/10.1117/12.46575
Event: Orlando '91, 1991, Orlando, FL, United States

Abstract

Analytical models of the spatial power spectral of temperature fluctuations and refractive index fluctuations that feature a 'bump' at high wave numbers have recently been developed. These models, based on the effects of intermittency, evolved through an approximation for the intermittency effect that led to a two-term modification of the standard Tatarski spectra models. This paper examines the intermittency correction with experimental data and standard spectra models. Specifically, more accurate approximations to the intermittency effect that lead to a four-term modification of the Tatarski model are developed. A comparison between these two modifications of the standard Tatarski spectrum is discussed in the context of theoretical studies concerning optical propagation through atmospheric turbulence.

Citation Download Citation

Elizabeth A. Sisterman and Larry C. Andrews "New look at bump spectra models for temperature and refractive-index fluctuations", Proc. SPIE 1487, Propagation Engineering: Fourth in a Series, (1 July 1991); https://doi.org/10.1117/12.46575

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