光学学报, 2020, 40 (12): 1201004, 网络出版: 2020-06-03
紫外双波长激光雷达系统研制与信噪比分析 
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Development of Ultraviolet Dual-Wavelength Lidar and Analysis of Its Signal-to-Noise Ratio
图 & 表
图 3. 实际探测信噪比。(a)日间探测;(b)夜间探测
Fig. 3. SNR of the actual detection. (a) During daytime detection; (b) during nighttime detection
图 4. 晴天探测气溶胶消光系数廓线
Fig. 4. Detection extinction coefficient profile of aerosol on a fine day
图 6. 晴天探测结果。(a)剔除臭氧影响后气溶胶消光系数廓线;(b) Angstrom指数;(c) 266 nm消光系数的绝对误差;(d) Angstrom指数的绝对误差
Fig. 6. Detection results on a fine day. (a) Extinction profiles of aerosols without ozone; (b) Angstrom index; (c) absolute error of extinction coefficient at 266 nm; (d) absolute error of Angstrom index
图 9. 雾霾天探测结果。(a)剔除臭氧影响后气溶胶消光系数廓线;(b) Angstrom指数;(c) 266 nm消光系数的绝对误差;(d) Angstrom指数的绝对误差
Fig. 9. Detection results on a haze day. (a) Extinction profiles of aerosols without ozone; (b) Angstrom index; (c) absolute error of extinction coefficient at 266 nm; (d) absolute error of Angstrom index
图 10. 激光雷达测量臭氧浓度数据与气象站监测臭氧数据对照
Fig. 10. Concentrations of ozone obtained by the Mie lidar compared with weather station
图 11. 夜晚20:00至凌晨03:00 CST连续探测气溶胶消光系数THI图。(a)剔除臭氧吸收系数的266 nm波长消光系数;(b)剔除臭氧吸收系数的355 nm波长消光系数
Fig. 11. THI of aerosol extinction coefficient from 20:00 CST to 03:00 CST. (a) Aerosol extinction coefficient at 266 nm without ozone absorption coefficient; (b) aerosol extinction coefficient at 355 nm without ozone absorption coefficient
表 1双波长激光雷达系统配置
Table1. Configuration of the dual-wavelength lidar system
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邵江锋, 华灯鑫, 汪丽, 王东, 潘睿. 紫外双波长激光雷达系统研制与信噪比分析[J]. 光学学报, 2020, 40(12): 1201004. Jiangfeng Shao, Dengxin Hua, Li Wang, Dong Wang, Rui Pan. Development of Ultraviolet Dual-Wavelength Lidar and Analysis of Its Signal-to-Noise Ratio[J]. Acta Optica Sinica, 2020, 40(12): 1201004.
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