Scintillation of partially coherent Gaussian-Schell model beam propagation in slant atmospheric turbulence considering inner- and outer-scale effects

Based on the modified Rytov theory and the international telecommunication union-radio （ITU-R） slant atmospheric structure constant model, the uniform scintillation index of partially coherent Gaussian-Schell model （GSM） beam propa- gation in the slant path is derived from weak- to strong-turbulence...

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Bibliographic Details
Published in:Chinese physics B 2014-07, Vol.23 (7), p.409-416
Main Authors: Li, Ya-Qing, Wu, Zhen-Sen, Zhang, Yuan-Yuan, Wang, Ming-Jun
Format: Article
Language:English
Subjects:
Atmospheric turbulence
Beams (radiation)
Cellular communication
Coherence
Constants
Mathematical models
Scintillation
Turbulence
光束传播
大气湍流
模型
规模效应
谢尔
部分相干
闪烁指数
高斯
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Summary:Based on the modified Rytov theory and the international telecommunication union-radio （ITU-R） slant atmospheric structure constant model, the uniform scintillation index of partially coherent Gaussian-Schell model （GSM） beam propa- gation in the slant path is derived from weak- to strong-turbulence regions considering inner- and outer-scale effects. The effects of wavelength of beams and inner- and outer-scale of turbulence on scintillation are analyzed numerically. Compar- ison between the scintillation of GSM beams under the von Karman spectrum and that of beams under the modified Hill spectrum is made. The results obtained show that the scintillation index obtained under the von Karman spectrum is smaller than that under the modified Hill spectrum. This study can find theory bases for the experiments of the partially coherent GSM beam propagation through atmospheric turbulence.
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/23/7/074202