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Generation of non-Kolmogorov atmospheric turbulence phase screen using intrinsic embedding fractional Brownian motion method
Wang, Kaidi1,2; Su, Xiuqin1; Li, Zhe1; Wu, Shaobo1,2; Zhou, Wei3; Wang, Rui1,2; Chen, Songmao1,2; Wang, Xuan1,2,4
作者部门光电跟踪与测量技术研究室
2020-04
发表期刊Optik
ISSN00304026
卷号207
产权排序1
摘要

Generating phase screens to replace phase fluctuation caused by atmospheric turbulence is essential for simulation of light propagation through the atmosphere. Error between power spectral density of actual turbulence and traditional Kolmogorov model illustrates the importance of generating non-Kolmogorov phase screen. Meanwhile, methods used to generate phase screen at present show different kinds of disadvantages respectively. In this paper, we adopt a new method named "intrinsic embedding fractional Brownian motion (IE-FBM)". First, relationship between phase screen and FBM is analyzed. Next, principle of IE-FBM is clarified. We expand the correlation matrix and generate a stationary Gaussian surface through two fast Fourier transforms, which is the principle of intrinsic embedding. After that, we adjust the Gaussian surface into an FBM surface. Finally, simulation results demonstrate that IE-FBM combines advantages of traditional methods. Phase structure function becomes closer to theoretical value no matter how we set parameters of phase screen. Besides, both low and high frequency components of phase screen are sufficient and creases don't exist. In addition, time consumption reduces apparently. In conclusion, our method is comprehensively optimal choice to generate phase screen. © 2020 Elsevier GmbH

关键词Non-Kolmogorov atmospheric turbulence Light propagation Phase screen Intrinsic embedding (IE) Fractional Brownian motion (FBM)
DOI10.1016/j.ijleo.2020.164444
收录类别SCI ; EI
语种英语
WOS记录号WOS:000523186200063
出版者Elsevier GmbH
EI入藏号20200908234852
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/93284
专题光电跟踪与测量技术研究室
通讯作者Su, Xiuqin
作者单位1.Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China;
3.School of Information Science and Technology, Northwest University, Xi'an; 710127, China;
4.School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an; 710049, China
推荐引用方式
GB/T 7714
Wang, Kaidi,Su, Xiuqin,Li, Zhe,et al. Generation of non-Kolmogorov atmospheric turbulence phase screen using intrinsic embedding fractional Brownian motion method[J]. Optik,2020,207.
APA Wang, Kaidi.,Su, Xiuqin.,Li, Zhe.,Wu, Shaobo.,Zhou, Wei.,...&Wang, Xuan.(2020).Generation of non-Kolmogorov atmospheric turbulence phase screen using intrinsic embedding fractional Brownian motion method.Optik,207.
MLA Wang, Kaidi,et al."Generation of non-Kolmogorov atmospheric turbulence phase screen using intrinsic embedding fractional Brownian motion method".Optik 207(2020).
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