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基于非柯尔莫哥洛夫湍流功率谱模型的用于探测大气湍流的米氏散射激光雷达的新型模拟与分析

Novel Simulation and Analysis of Mie-Scattering Lidar for Detecting Atmospheric Turbulence Based on Non-Kolmogorov Turbulence Power Spectrum Model.

作者信息

Zhang Yingnan, Mao Jiandong, Li Juan, Gong Xin

机构信息

School of Electrical and Information Engineering, North Minzu University, North Wenchang Road, Yinchuan 750021, China.

Key Laboratory of Atmospheric Environment Remote Sensing of Ningxia Province, North Wenchang Road, Yinchuan 750021, China.

出版信息

Entropy (Basel). 2022 Dec 1;24(12):1764. doi: 10.3390/e24121764.

DOI:10.3390/e24121764
PMID:36554168
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9778080/
Abstract

The Mie-scattering lidar can detect atmospheric turbulence intensity by using the return signals of Gaussian beams at different heights. The power spectrum method and Zernike polynomial method are used to simulate the non-Kolmogorov turbulent phase plate, respectively, and the power spectrum method with faster running speed is selected for the subsequent simulation. In order to verify the possibility of detecting atmospheric turbulence by the Mie-scattering lidar, some numerical simulations are carried out. The power spectrum method is used to simulate the propagation of the Gaussian beam from the Mie-scattering lidar in a vertical path. The propagation characteristics of the Gaussian beam using a non-Kolmogorov turbulence model are obtained by analyzing the intensity distribution and spot drift effect. The simulation results show that the scintillation index of simulation is consistent with the theoretical value trend, and the accuracy is very high, indicating that the method of atmospheric turbulence detection using Mie-scattering lidar is effective. The simulation plays a guiding role for the subsequent experimental platform construction and equipment design.

摘要

米氏散射激光雷达可以利用不同高度高斯光束的回波信号来探测大气湍流强度。分别采用功率谱方法和泽尼克多项式方法模拟非柯尔莫哥洛夫湍流相位屏，选择运行速度更快的功率谱方法进行后续模拟。为了验证米氏散射激光雷达探测大气湍流的可能性，进行了一些数值模拟。采用功率谱方法模拟高斯光束从米氏散射激光雷达在垂直路径上的传播。通过分析强度分布和光斑漂移效应，得到了采用非柯尔莫哥洛夫湍流模型的高斯光束的传播特性。模拟结果表明，模拟的闪烁指数与理论值趋势一致，精度很高，表明利用米氏散射激光雷达探测大气湍流的方法是有效的。该模拟对后续实验平台建设和设备设计具有指导作用。

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引用本文的文献

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Novel Detection of Atmospheric Turbulence Profile Using Mie-Scattering Lidar Based on Non-Kolmogorov Turbulence Theory.基于非柯尔莫哥洛夫湍流理论的米氏散射激光雷达对大气湍流剖面的新型探测
Entropy (Basel). 2023 Mar 9;25(3):477. doi: 10.3390/e25030477.

本文引用的文献

1
Spot dancing of the laser beam propagated through the turbulent atmosphere.激光束在湍流大气中传播时的光斑跳动。
Appl Opt. 1971 Nov 1;10(11):2456-61. doi: 10.1364/AO.10.002456.