机载激光雷达波长对晴空湍流探测距离的影响

IF 1.1 4区工程技术 Q4 OPTICS

Optical Engineering Pub Date : 2023-11-08 DOI:10.1117/1.oe.62.11.114101

Jing Zhao, Xiujuan Luo, Zhaohui Liu, Hui Liu, Minglai Chen, Yu Zhang, Zelin Yue

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引用次数: 0

摘要

从理论上全面研究了激光波长对不同晴空湍流(CAT)强度下探测距离、距离分辨率和Brunt-Väisälä频率的影响。发现存在最大探测距离的最佳波长。在距离分辨率一定的情况下，将532 nm激光雷达的探测距离与355 nm和1064 nm激光雷达的探测距离进行比较，发现532 nm激光雷达更适合中重度CAT。我们的发现打破了“紫外波长激光雷达最适合CAT探测”的传统认知，有望推动CAT的远程探测研究。

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Influence of airborne LiDAR wavelength on the detection distance of clear air turbulence

We comprehensively investigated the influence of laser wavelength on the detection distance at different clear air turbulence (CAT) intensities, distance resolutions, and Brunt–Väisälä frequency theoretically. It is found that there exists the optimal wavelength for maximal detection distance. When the distance resolution is fixed, the detection distance of 532 nm LiDAR is further compared with the 355 and 1064 nm counterparts and is more suitable under moderate to severe CAT. Our findings break the traditional cognition that “ultraviolet wavelength LiDAR is the most suitable for CAT detection” and may promote the remote detection research of CAT.

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来源期刊

Optical Engineering 工程技术-光学

CiteScore

2.70

自引率

7.70%

发文量

393

审稿时长

2.6 months

期刊介绍： Optical Engineering publishes peer-reviewed papers reporting on research and development in optical science and engineering and the practical applications of known optical science, engineering, and technology.