Method for Determining Boundary Value of Extinction Coefficient

Fig. 2. Simulation signals and inversion results. (a) Lidar simulation signal; (b) inversion result of method 1; (c) inversion result of method 2; (d) inversion result of method 3

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Fig. 3. Measured signals and inversion results on November 10, 2015. (a) Lidar echo signal; (b) inversion result of method 1; (c) inversion result of method 2; (d) inversion result of method 3

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Table 1. Main technical parameters of CE 370-2 system

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Table 1. Main technical parameters of CE 370-2 system

Item	Parameter
Transmitter type	Nd∶YAG
Wavelength /nmLaser power /mWLaser output energy /μJ	53250-1008-20
Repetition frequency /kHzPulse width /nsTelescope diameter /mm	4.7<15200
Range resolution /mTelescope field of view (FOV) /μradDetection mode	1555/110Photon counting

Table 2. Inversion results of three inversion algorithms
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Table 2. Inversion results of three inversion algorithms
Algorithm α(z_c) /km^-1 A_ARE /% Iteration times
1 0.00032 7.89 3
2 0.00032 7.89 7
3 0.00039 6.97 90

Table 3. Inversion results of three inversion algorithms
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Table 3. Inversion results of three inversion algorithms
Algorithm α(z_c) /km^-1 A_ARE /% Iteration times
1 0.00816 21.51 3
2 0.00816 21.51 5
3 0.00825 21.77 82

Table 4. Results of numerical iteration
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Table 4. Results of numerical iteration
Iteration times Iteration result /km^-1
x₀=0.1 km^-1 x₀=1.0 km^-1
1 0.01106299350626 0.21087944416133
2 0.00816101020509 0.02457958037373
3 0.00816082455575 0.00819052938697
4 - 0.00816082455596
5 - 0.00816082455575

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Xiaonan Chen, Jingping Bi, Kaixin Wang, Bing Han, Yunlei Liu. Method for Determining Boundary Value of Extinction Coefficient[J]. Laser & Optoelectronics Progress, 2019, 56(24): 240102

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