Wave Structure Function and Long-Exposure MTF for Gaussian-Beam Waves Propagating in Anisotropic Maritime Atmospheric Turbulence

Wave Structure Function and Long-Exposure MTF for Gaussian-Beam Waves Propagating in Anisotropic Maritime Atmospheric Turbulence

The expressions of wave structure function (WSF) and long-exposure modulation transfer function (MTF) for laser beam propagation through non-Kolmogorov turbulence were derived in our previous work. In this paper, based on anisotropic maritime atmospheric non-Kolmogorov spectrum, the new analytic exp...

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Bibliographic Details
Main Authors: Bing Guan, Haiyang Yu, Wei Song, Jaeho Choi
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Applied Sciences
Subjects:
wave structure function
modulation transfer function
maritime atmospheric turbulence
Online Access:https://www.mdpi.com/2076-3417/10/16/5484
id doaj-4edb245b2a754873a1c037e59a44d24c
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spelling doaj-4edb245b2a754873a1c037e59a44d24c2020-11-25T03:41:45ZengMDPI AGApplied Sciences2076-34172020-08-01105484548410.3390/app10165484Wave Structure Function and Long-Exposure MTF for Gaussian-Beam Waves Propagating in Anisotropic Maritime Atmospheric TurbulenceBing Guan0Haiyang Yu1Wei Song2Jaeho Choi3School of Computer Science and Engineering, Huizhou University, Huizhou 516007, ChinaSchool of Computer Science and Engineering, Huizhou University, Huizhou 516007, ChinaDepartment of Electronic Information and Communication Engineering, Applied Technology College of Soochow University, Suzhou 215325, ChinaDepartment of Electronic Engineering, CAIIT, Jeonbuk National University, Jeonju 54896, KoreaThe expressions of wave structure function (WSF) and long-exposure modulation transfer function (MTF) for laser beam propagation through non-Kolmogorov turbulence were derived in our previous work. In this paper, based on anisotropic maritime atmospheric non-Kolmogorov spectrum, the new analytic expression of WSF for Gaussian-beam waves propagation through turbulent atmosphere in a horizontal path is derived. Moreover, using this newly derived expression, long-exposure MTF for Gaussian-beam waves is obtained for analyzing the degrading effects in an imaging system. Using the new expressions, WSF and MTF for Gaussian-beam waves propagating in terrestrial and maritime atmospheric turbulence are evaluated. The simulation results show that Gaussian-beam waves propagation through maritime turbulence obtain more degrading effects than terrestrial turbulence due to the humidity and temperature fluctuations. Additionally, the degrading effects under anisotropic turbulence get less loss than that of isotropic turbulence.https://www.mdpi.com/2076-3417/10/16/5484wave structure functionmodulation transfer functionmaritime atmospheric turbulence
collection DOAJ
language English
format Article
sources DOAJ
author Bing Guan
Haiyang Yu
Wei Song
Jaeho Choi
spellingShingle Bing Guan
Haiyang Yu
Wei Song
Jaeho Choi
Wave Structure Function and Long-Exposure MTF for Gaussian-Beam Waves Propagating in Anisotropic Maritime Atmospheric Turbulence
Applied Sciences
wave structure function
modulation transfer function
maritime atmospheric turbulence
author_facet Bing Guan
Haiyang Yu
Wei Song
Jaeho Choi
author_sort Bing Guan
title Wave Structure Function and Long-Exposure MTF for Gaussian-Beam Waves Propagating in Anisotropic Maritime Atmospheric Turbulence
title_short Wave Structure Function and Long-Exposure MTF for Gaussian-Beam Waves Propagating in Anisotropic Maritime Atmospheric Turbulence
title_full Wave Structure Function and Long-Exposure MTF for Gaussian-Beam Waves Propagating in Anisotropic Maritime Atmospheric Turbulence
title_fullStr Wave Structure Function and Long-Exposure MTF for Gaussian-Beam Waves Propagating in Anisotropic Maritime Atmospheric Turbulence
title_full_unstemmed Wave Structure Function and Long-Exposure MTF for Gaussian-Beam Waves Propagating in Anisotropic Maritime Atmospheric Turbulence
title_sort wave structure function and long-exposure mtf for gaussian-beam waves propagating in anisotropic maritime atmospheric turbulence
publisher MDPI AG
series Applied Sciences
issn 2076-3417
publishDate 2020-08-01
description The expressions of wave structure function (WSF) and long-exposure modulation transfer function (MTF) for laser beam propagation through non-Kolmogorov turbulence were derived in our previous work. In this paper, based on anisotropic maritime atmospheric non-Kolmogorov spectrum, the new analytic expression of WSF for Gaussian-beam waves propagation through turbulent atmosphere in a horizontal path is derived. Moreover, using this newly derived expression, long-exposure MTF for Gaussian-beam waves is obtained for analyzing the degrading effects in an imaging system. Using the new expressions, WSF and MTF for Gaussian-beam waves propagating in terrestrial and maritime atmospheric turbulence are evaluated. The simulation results show that Gaussian-beam waves propagation through maritime turbulence obtain more degrading effects than terrestrial turbulence due to the humidity and temperature fluctuations. Additionally, the degrading effects under anisotropic turbulence get less loss than that of isotropic turbulence.
topic wave structure function
modulation transfer function
maritime atmospheric turbulence
url https://www.mdpi.com/2076-3417/10/16/5484
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AT haiyangyu wavestructurefunctionandlongexposuremtfforgaussianbeamwavespropagatinginanisotropicmaritimeatmosphericturbulence
AT weisong wavestructurefunctionandlongexposuremtfforgaussianbeamwavespropagatinginanisotropicmaritimeatmosphericturbulence
AT jaehochoi wavestructurefunctionandlongexposuremtfforgaussianbeamwavespropagatinginanisotropicmaritimeatmosphericturbulence
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