Novel Lidar algorithm for horizontal visibility measurement and sea fog monitoring

被引：19

作者：

Xian, Jinhong ^{[1
]}

Han, Yuli ^{[1
]}

Huang, Siyuan ^{[2
]}

Sun, Dongsong ^{[1
]}

Zheng, Jun ^{[1
]}

Han, Fei ^{[1
]}

Zhou, Anran ^{[1
]}

Yang, Shaochen ^{[3
]}

Xu, Wenjing ^{[3
]}

Song, Qingchun ^{[3
]}

Wei, Lifeng ^{[3
]}

Tan, Qingzhi ^{[3
]}

Li, Xuzi ^{[3
]}

机构：

[1] Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230000, Anhui, Peoples R China

[2] Meteorol Bur, Ningbo 315000, Zhejiang, Peoples R China

[3] Darsunlaser Technol Co Ltd, Shenzhen 518000, Peoples R China

来源：

OPTICS EXPRESS | 2018年 / 26卷 / 26期

基金：

中国国家自然科学基金;

关键词：

UNITED-STATES; INVERSION; COAST;

D O I：

10.1364/OE.26.034853

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Traditionally, Klett and Fernald inversion estimates an initial value using the slope method for horizontal visibility, which causes inversion uncertainty. We proposed an algorithm to retrieve the extinction coefficient and visibility distribution information from scanning Lidar to overcome instability due to initial atmospheric extinction coefficient choice and assuming the Lidar ratio. Numerical simulations showed that extinction coefficient maximum relative was much larger for inhomogeneous atmosphere using the Klett method, reaching 0.31. In contrast, it is only 0.049 using the proposed algorithm. Experimental showed that the proposed algorithm and scanning Lidar system provide very high stability and accuracy, can work in different weather conditions and monitor sea fog evolution over real time, and is suitable for various situations with different visibility. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：34853 / 34863

页数：11

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