Aperture-averaged scintillation index and fade statistics in weak oceanic turbulence
文献类型:期刊论文
作者 | Wang, Hao3,4; Kang, Fu-Zeng4; Wang, Xuan1,2; Zhao, Wei4; Sun, Shu-Wei3,4 |
刊名 | Chinese Physics B |
出版日期 | 2021-05 |
卷号 | 30期号:6 |
ISSN号 | 16741056;20583834 |
关键词 | underwater optical communication (UOC) aperture-averaged scintillation index fade statistics |
DOI | 10.1088/1674-1056/abd756 |
产权排序 | 1 |
英文摘要 | With the rapid demand for underwater optical communication (UOC), studies of UOC degradation by oceanic turbulence have attached increasing attention worldwide and become a research hot-spot in recent years. Previous studies used a simplified and inaccurate oceanic turbulence spectrum, in which the eddy diffusivity ratio between temperature and salinity is assumed to be unity and the outer scale of turbulence is assumed to be infinite. However, both assumptions are not true in most of the actual marine environments. In this paper, based on the Rytov theory in weak turbulence, we derive analytical expressions of "the aperture-averaged scintillation index"(SI) for both plane and spherical waves, which can clearly demonstrate how SI is influenced by several key factors in UOC. Then, typical fade statistics of the UOC system in weak turbulence is discussed including the probability of fade, the expected number of fades per time, the mean fade time, signal-to-noise ratio and bit error rate. Our results show that spherical wave is preferable in the UOC system in weak turbulence compared to plane wave, and the aperture-averaged effect has a significant impact on UOC system's performance. Our results can be used to determine those key parameters for designing the UOC system over reasonable ranges. © 2021 Chinese Physical Society and IOP Publishing Ltd. |
语种 | 英语 |
出版者 | IOP Publishing Ltd |
源URL | [http://ir.opt.ac.cn/handle/181661/94916] |
专题 | 西安光学精密机械研究所_瞬态光学技术国家重点实验室 |
通讯作者 | Kang, Fu-Zeng; Wang, Xuan |
作者单位 | 1.Songshan Lake Materials Laboratory, Dongguan; 523808, China 2.Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing; 100190, China; 3.University of Chinese Academy of Sciences, Beijing; 100049, China; 4.State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; |
推荐引用方式 GB/T 7714 | Wang, Hao,Kang, Fu-Zeng,Wang, Xuan,et al. Aperture-averaged scintillation index and fade statistics in weak oceanic turbulence[J]. Chinese Physics B,2021,30(6). |
APA | Wang, Hao,Kang, Fu-Zeng,Wang, Xuan,Zhao, Wei,&Sun, Shu-Wei.(2021).Aperture-averaged scintillation index and fade statistics in weak oceanic turbulence.Chinese Physics B,30(6). |
MLA | Wang, Hao,et al."Aperture-averaged scintillation index and fade statistics in weak oceanic turbulence".Chinese Physics B 30.6(2021). |
入库方式: OAI收割
来源:西安光学精密机械研究所
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