Temporal power spectral models of angle of arrival fluctuations for optical waves propagating through weak non-Kolmogorov turbulence  

作　　者：崔林艳 薛斌党 朱文越 白相志 曹晓光 周付根 

机构地区：[1]Key Laboratory of Atmospheric Composition and Optical Radiation Chinese Academy of Sciences [2]School of Astronautics,Beihang University

出　　处：《Chinese Optics Letters》2013年第11期5-8,共4页中国光学快报（英文版）

基　　金：supported by the Beijing Natural Sci-ence Foundation(No.4122047);the Innovation Foundation of AVIC(No.CXY2010BH02),the Fundamental Research Fund for the Central Universities;the Open Research Fund of Key Laboratory of Atmospheric Composition and Optical Radiation,Chinese Academy of Sciences

摘　　要：Analytical expressions of the temporal power spectral models of angle of arrival （AOA） fluctuations are derived using the generalized exponential spectral model for optical waves propagating through weak non- Kolmogorov turbulence. Compared with expressions of temporal power spectral models derived from the general non-Kolmogorov spectral model, the new expressions consider the influences of the inner and outer scales of finite turbulence. Numerical calculations show that large outer scales of turbulence increase the value of the temporal power spectrum of AOA fluctuations in low-frequency regions.Analytical expressions of the temporal power spectral models of angle of arrival （AOA） fluctuations are derived using the generalized exponential spectral model for optical waves propagating through weak non- Kolmogorov turbulence. Compared with expressions of temporal power spectral models derived from the general non-Kolmogorov spectral model, the new expressions consider the influences of the inner and outer scales of finite turbulence. Numerical calculations show that large outer scales of turbulence increase the value of the temporal power spectrum of AOA fluctuations in low-frequency regions.

关 键 词：Turbulence models 

分 类 号：P425.2[天文地球—大气科学及气象学]