Atmospheric Optical Turbulence Profile Estimation Using Support Vector Machine

Liming Zhu; Gang Sun; Duolong Chen; Hanjiu Zhang; Yuan Fang; Xuebin Ma

doi:10.3788/AOS202242.0101001

Acta Optica Sinica, Volume. 42, Issue 1, 0101001(2022)

Atmospheric Optical Turbulence Profile Estimation Using Support Vector Machine

Liming Zhu^1,2、*, Gang Sun^2、**, Duolong Chen^2,3, Hanjiu Zhang^2,3, Yuan Fang^2,3, and Xuebin Ma²

Author Affiliations

¹School of Physics and Materials Sciences, Anhui University, Hefei, Anhui 230031, China

²Key Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, China

³School of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei, Anhui 230031, China

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Figures & Tables(12)

Fig. 1. Optimal hyperplane determined by SVM

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Fig. 2. Optimal hyperplane determined by SVR

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Fig. 3. Basic working mechanism of SVM

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Fig. 4. Profiles of radiosonde measurement

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Fig. 5. Profiles of conventional radiosonde meteorological parameters on 2018-05-05

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Fig. 6. Contour plot of mean square error of C and g

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Fig. 7. Comparison of $C_{n}^{2}$ profiles obtained by radiosonde measurement and SVM model. (a) 2018-05-05; (b) 2018-05-10

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Fig. 8. Frequency number distribution histogram and cumulative probability distribution of lg $C_{n}^{2}$ on 2018-05-05

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Fig. 9. Frequency number distribution histogram and cumulative probability distribution of lg $C_{n}^{2}$ on 2018-05-10

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Fig. 10. Scatter diagrams of lg $C_{n}^{2}$ value obtained by radiosonde measurement and SVM model. (a) 2018-05-05; (b) 2018-05-10

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Table 1. Record of balloon soundings in coastland

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Table 1. Record of balloon soundings in coastland

Balloonnumber	Launch data	Launch time(local time)	Termination altitude(above sea level) /m
1#	2018.04.15	07:43	30360
2#	2018.04.16	07:38	32060
3#	2018.04.18	07:33	30100
4#	2018.04.19	07:33	30490
5#	2018.04.20	07:36	29610
6#	2018.04.21	07:38	22090
7#	2018.04.22	07:37	28000
8#	2018.04.25	07:42	25520
9#	2018.04.27	07:40	28920
10#	2018.04.28	07:38	28620
11#	2018.04.30	07:35	30010
12#	2018.05.01	07:41	30890
13#	2018.05.02	07:39	30490
14#	2018.05.05	07:37	31060
15#	2018.05.10	07:37	26010

Table 2. Error statistics of $C_{n}^{2}$ profile estimated by SVM model
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Table 2. Error statistics of $C_{n}^{2}$ profile estimated by SVM model
Data MAE RMSE Bias R_xy
2018-05-05 0.3722 0.4461 -0.2443 0.7042
2018-05-10 0.3195 0.3939 -0.0476 0.6217

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Liming Zhu, Gang Sun, Duolong Chen, Hanjiu Zhang, Yuan Fang, Xuebin Ma. Atmospheric Optical Turbulence Profile Estimation Using Support Vector Machine[J]. Acta Optica Sinica, 2022, 42(1): 0101001

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