Songlin Fu, Chenbo Xie, Lu Li, Zhiyuan Fang, Hao Yang, Bangxin Wang, Dong Liu, Yingjian Wang. PM2.5 Concentration Identification Based on Lidar Detection[J]. Acta Optica Sinica, 2021, 41(9): 0928001
- Acta Optica Sinica
- Vol. 41, Issue 9, 0928001 (2021)
Fig. 1. Schematic diagram of the lidar system
Fig. 2. Range-corrected signal and extinction coefficient under different weathers obtained by lidar: (a)(b) Fine weather; (c)(d) haze weather
Fig. 3. Quantitative identification of regression model
Fig. 4. Results of correlation analysis between aerosol optical depth and PM2.5 mass concentration. (a) Correlation analysis; (b) calculated PM2.5 mass concentration
Fig. 5. Identification and prediction based on BP neural network
Fig. 6. Identification and prediction based on GA-BP neural network
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Table 1. Lidar parameter
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Table 2. Parameters of genetic algorithm
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Table 3. Correlation analysis between aerosol optical depth and PM2.5 mass concentration
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Table 4. Comparison of regression model parameters constructed by BP neural network
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Table 5. Comparison of regression model parameters constructed by GA-BP neural network
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Table 6. [in Chinese]
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