中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Generation of non-Kolmogorov atmospheric turbulence phase screen using intrinsic embedding fractional Brownian motion method

文献类型:期刊论文

作者Wang, Kaidi2,3; Su, Xiuqin3; Li, Zhe3; Wu, Shaobo2,3; Zhou, Wei1; Wang, Rui2,3; Chen, Songmao2,3; Wang, Xuan2,3,4
刊名Optik
出版日期2020-04
卷号207
ISSN号00304026
关键词Non-Kolmogorov atmospheric turbulence Light propagation Phase screen Intrinsic embedding (IE) Fractional Brownian motion (FBM)
DOI10.1016/j.ijleo.2020.164444
产权排序1
英文摘要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
语种英语
出版者Elsevier GmbH
源URL[http://ir.opt.ac.cn/handle/181661/93284]  
专题西安光学精密机械研究所_光电测量技术实验室
通讯作者Su, Xiuqin
作者单位1.School of Information Science and Technology, Northwest University, Xi'an; 710127, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China;
3.Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, 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).

入库方式: OAI收割

来源:西安光学精密机械研究所

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