Theoretical expressions of temporal power spectra of irradiance fluctuations for optical waves propagating through weak non-Kolmogorov turbulence

被引：0
|
作者：
Cui, Linyan [1 ]
Xue, Bindang [1 ]
Cao, Lei [1 ]
Cao, Xiaoguang [1 ]
机构：
[1] Beihang Univ, Sch Astronaut, Beijing 100191, Peoples R China
来源：
OPTIK | 2014年 / 125卷 / 13期
基金：
北京市自然科学基金;
关键词：
Atmospheric optics; Non-Kolmogorov turbulence; Irradiance fluctuations; Temporal power spectrum; STAR IMAGE MOTION; STRATOSPHERIC TURBULENCE; SCINTILLATION; TROPOSPHERE; ATMOSPHERE; MODEL;
D O I：
10.1016/j.ijleo.2013.12.065
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The temporal power spectra of irradiance fluctuations reflect the frequency distribution of temporal statistical property of irradiance fluctuation. In this paper, new analytical expressions of the temporal power spectral models of irradiance fluctuations are developed for optical waves propagating through weak non-Kolmogorov turbulence with horizontal path. They are derived with the general modified atmospheric spectral model, and they consider the finite turbulence inner and outer scales, and have a general spectral power law value in the range of 3 to 4 instead of the standard power law value of 11/3. Numerical calculations are conducted to analyze the influence of non-Kolmogorov weak turbulence on the temporal power spectra of irradiance fluctuations. (C) 2014 Elsevier GmbH. All rights reserved.
引用
收藏
页码：3358 / 3365
页数：8
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