Xinglong Xiong, Jie Wang, Kui Liu, Yuzhao Ma. Lidar Slant-Range Visibility Retrieval Method Based on Effect of Multiple Scattering[J]. Laser & Optoelectronics Progress, 2022, 59(4): 0429001
- Laser & Optoelectronics Progress
- Vol. 59, Issue 4, 0429001 (2022)
Fig. 1. Schematic of lidar measurement
Fig. 2. Comparison of three scattering phase functions. (a) λ=10.07 μm, g=0.799; (b) λ=3.90 μm, g=0.690
Fig. 3. Multiple scattering transmission process
Fig. 4. Change of correction factor
Fig. 5. Scattering reception probability of dust aerosols. (a) Proposed improved scattering phase function method; (b) traditional HG function method
Fig. 6. m(r) of Raman scattering phase function when visibility is at level Ⅳ
Fig. 7. Haze weather echo signal when visibility is at level Ⅳ. (a) Original power echo signal; (b) echo signal after range correction
Fig. 8. Relevant parameters of haze weather when visibility is at level Ⅳ. (a) Extinction coefficient profile; (b) atmospheric optical thickness profile
Fig. 9. Scattering reception probability of water-soluble aerosols. (a) Proposed improved scattering phase function method; (b) traditional HG function method
Fig. 10. m(r) of Raman scattering phase function when visibility is at level Ⅴ
Fig. 11. Heavy rain weather echo signal when visibility is at level Ⅳ. (a) Original power echo signal; (b) echo signal after range correction
Fig. 12. Relevant parameters of heavy rain weather when visibility is at level Ⅴ. (a) Extinction coefficient profile; (b) atmospheric optical thickness profile
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Table 1. Semi-analytical Monte Carlo simulation parameters
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Table 2. Ratio m(r) corresponding to different visibility levels
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