Modeling and analysis of beam wander in maritime atmospheric turbulence

被引：0
|
作者：
Wang H. [1 ,2 ]
Wu X. [1 ,2 ]
Song B. [1 ,2 ]
机构：
[1] Department of Electronic Engineering, Naval Aeronautical and Astronautical University, Yantai, 264001, Shandong
[2] Key Laboratory of Shandong Province on Signal and Information Processing, Yantai, 264001, Shandong
来源：
Wu, Xiaojun (195358836@qq.com) | 1600年 / Science Press卷 / 43期
关键词：
Atmospheric optics; Atmospheric turbulence; Beam wander; Laser propagation; Maritime environment; Refractive index fluctuation power spectrum; Relative error;
D O I：
10.3788/CJL201643.0213001
中图分类号：
学科分类号：
摘要：
Beam wander is an important effect when a beam propagates in atmospheric turbulence. Based on the marine atmospheric refractive index fluctuation power spectrum, a new theoretical expression is developed for a horizontal propagation path in maritime atmospheric environment. In order to validate the model, a set of measurements of beam wander for a collimated Gaussian beam is carried out using CCD technique during multiple laser transmissions under the sea surface environment in Yantai region, and the experiments are conducted at different time and various ranges. By comparing the theoretical value with measured value under the weak fluctuation condition, the results show that the relative errors between them are below 16%, and the estimation given by the new theoretical expression generally provides a good fit with the data. According to the conclusion of this paper, the beam wander in the maritime atmospheric turbulence can be more accurately predicted. © 2016, Chinese Laser Press. All right reserved.
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页数：12
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