Alharbi Omar, Kane Tim, Henderson Diane
Department of Electrical Engineering, The Pennsylvania State University, University Park, State College, PA 16802, USA.
Department of Electrical Engineering, College of Engineering, Majmaah University, Majmaah 11952, Saudi Arabia.
Sensors (Basel). 2022 Oct 10;22(19):7676. doi: 10.3390/s22197676.
The roughness of the ocean surface significantly impacts air-to-sea imaging, oceanographic monitoring, and optical communication. Most current and previous methods for addressing this roughness and its impact on optical propagation are either entirely statistical or theoretical, or are 'mixed methods' based on a combination of statistical models and parametric-based physical models. In this paper, we performed experiments in a 50-foot-wave tank on wind-generated waves, in which we varied the wind speed to measure how the surface waves affect the laser beam propagation and develop a geometrical optical model to measure and analyze the refraction angle and slope angle of the laser beam under various environmental conditions. The study results show that the laser beam deviations/distortions and laser beam footprint size are strongly related to wind speed and laser beam incidence angle.
海洋表面的粗糙度对空海成像、海洋学监测和光通信有显著影响。目前和以往解决这种粗糙度及其对光传播影响的大多数方法要么完全是统计性的或理论性的，要么是基于统计模型和基于参数的物理模型相结合的“混合方法”。在本文中，我们在一个50英尺长的造波水槽中对风生浪进行了实验，在实验中改变风速以测量表面波如何影响激光束传播，并建立一个几何光学模型来测量和分析在各种环境条件下激光束的折射角和倾斜角。研究结果表明，激光束的偏差/畸变和激光束光斑尺寸与风速和激光束入射角密切相关。
