Novel Method Based Upon Combined Lidar System for PM2.5 Detection

被引：1
作者：
Li, Meng [1 ]
Fu, Ning [1 ]
Xiong, Xinglong [1 ]
Ma, Yuzhao [1 ]
机构：
[1] Civil Aviat Univ China, Key Lab Operat Programming & Safety Technol Air T, Tianjin 300300, Peoples R China
来源：
IEEE PHOTONICS JOURNAL | 2022年 / 14卷 / 01期
基金：
国家重点研发计划;
关键词：
Atmospheric measurements; Laser radar; Atmospheric modeling; Aerosols; Licenses; Humidity; Extinction coefficients; Lidar; atmospheric transmissometer; particle size spectrometer; PM2; 5; detection; AEROSOL OPTICAL-PROPERTIES; BISTATIC IMAGING LIDAR; MICRO-PULSE LIDAR; RAMAN LIDAR; DISTRIBUTIONS; CLOUD; PROFILES; NETWORK; IMPACT;
D O I：
10.1109/JPHOT.2021.3129190
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, we proposed a novel method based upon Lidar, atmospheric transmissometer and particle size spectrometer for PM2.5 detection. Combining the transmissive visibility meter and a particle size spectrometer, we can establish the relationship between PM2.5 mass concentration and atmospheric transmittance in vertical space. Then, with the transmissive visibility meter and Lidar, the vertical distribution of the atmospheric transmittance detected by the Lidar can be corrected. Compared with the direct use of particle size spectrometer and Lidar to retrieve the PM2.5 mass concentration profile, our method not only can determine Lidar boundary value effectively, but also settle the issue of incomplete overlap zone between the transmitter and the receiver to a certain extent. With real data, the proposed method is verified.
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页数：8
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