A Computational Model of Cn2 Profile Inversion for Atmospheric Laser Communication in the Vertical Path

Haifeng Yao; Yuxi Cao; Weihao Wang; Qingfang Jiang; Jie Cao; Qun Hao; Zhi Liu; Peng Zhang; Yidi Chang; Guiyun Zhang; Tongtong Geng

doi:10.3390/s23135874

Sensors (Jun 2023)

A Computational Model of Cn2 Profile Inversion for Atmospheric Laser Communication in the Vertical Path

Haifeng Yao,
Yuxi Cao,
Weihao Wang,
Qingfang Jiang,
Jie Cao,
Qun Hao,
Zhi Liu,
Peng Zhang,
Yidi Chang,
Guiyun Zhang,
Tongtong Geng

Affiliations

Haifeng Yao: Key Laboratory of Biomimetic Robots and Systems, Ministry of Education, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China
Yuxi Cao: Key Laboratory of Photoelectric Measurement and Control and Optical Information Transfer Technology of Ministry of Education, Changchun University of Science and Technology, 7089 Weixing Road, Changchun 130022, China
Weihao Wang: Key Laboratory of Photoelectric Measurement and Control and Optical Information Transfer Technology of Ministry of Education, Changchun University of Science and Technology, 7089 Weixing Road, Changchun 130022, China
Qingfang Jiang: Key Laboratory of Photoelectric Measurement and Control and Optical Information Transfer Technology of Ministry of Education, Changchun University of Science and Technology, 7089 Weixing Road, Changchun 130022, China
Jie Cao: Key Laboratory of Biomimetic Robots and Systems, Ministry of Education, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China
Qun Hao: Key Laboratory of Biomimetic Robots and Systems, Ministry of Education, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China
Zhi Liu: Key Laboratory of Photoelectric Measurement and Control and Optical Information Transfer Technology of Ministry of Education, Changchun University of Science and Technology, 7089 Weixing Road, Changchun 130022, China
Peng Zhang: School of Space Command, Space Engineering University, No.1 Bayi Road, Huairou, Beijing 101416, China
Yidi Chang: Key Laboratory of Photoelectric Measurement and Control and Optical Information Transfer Technology of Ministry of Education, Changchun University of Science and Technology, 7089 Weixing Road, Changchun 130022, China
Guiyun Zhang: Key Laboratory of Photoelectric Measurement and Control and Optical Information Transfer Technology of Ministry of Education, Changchun University of Science and Technology, 7089 Weixing Road, Changchun 130022, China
Tongtong Geng: Key Laboratory of Photoelectric Measurement and Control and Optical Information Transfer Technology of Ministry of Education, Changchun University of Science and Technology, 7089 Weixing Road, Changchun 130022, China

DOI: https://doi.org/10.3390/s23135874
Journal volume & issue: Vol. 23, no. 13
p. 5874

Abstract

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In this paper, an atmospheric structure constant Cn2 model is proposed for evaluating the channel turbulence degree of atmospheric laser communication. First, we derive a mathematical model for the correlation between the atmospheric coherence length r0, the isoplanatic angle θ0 and Cn2 using the Hufnagel–Valley (HV) turbulence model. Then, we calculate the seven parameters of the HV model with the actual measured r0 and θ0 data as input quantities, so as to draw the Cn2 profile and the θ0 profile. The experimental results show that the fitted average Cn2 contours and single-day Cn2 contours have superior fitting performance compared with our historical data, and the daily correlation coefficient between the single-day computed θ0 contours and the measured θ0 contours is up to 87%. This result verifies the feasibility of the proposed method. The results validate the feasibility of the proposed method and provide a new technical tool for the inversion of turbulence Cn2 profiles.

Published in Sensors

ISSN: 1424-8220 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Chemical technology
Website: http://www.mdpi.com/journal/sensors

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