Design and simulation of Raman lidar with small field of view for atmospheric temperature and humidity detection

被引：0
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作者：
Xu B. [1 ,2 ,3 ]
Han Y. [4 ]
Xu W. [1 ,2 ,3 ]
Zheng J. [1 ,2 ,3 ]
Sun D. [1 ,2 ,3 ]
机构：
[1] School of Earth and Space Sciences, University of Science and Technology of China, Hefei
[2] Chinese Academy of Sciences Key Laboratory of Geospace Environment, Hefei
[3] Anhui Mengcheng Geophysics National Observation and Research Station, Bozhou
[4] Northwest Institute of Nuclear Technology of China, Xi'an
来源：
Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering | 2021年 / 50卷 / 09期
关键词：
Lidar; Monostatic; Raman scattering; Temperature and humidity detection;
D O I：
10.3788/IRLA20200410
中图分类号：
学科分类号：
摘要：
The solar background radiation seriously affects the detection performance of Raman lidar during daytime. In order to improve the detection height and accuracy of Raman lidar during daytime, a Raman lidar system with laser wavelength of 354.8 nm was designed. The influence of 354.8 nm and 532 nm laser sources on the detection performance of Raman lidar was discussed. The optical path design of the system was completed. The combination of photoswitch and monostatic telescope reduced the receiving field of view angle and optimized daytime detection performance. The photoswitch was composed of polarization splitting prism and 1/4 wave plate. With the minimum statistical temperature uncertainty as the standard, the parameters of rotational Raman channel interference filter were selected through simulation analysis. And the detection performance of the system was simulated. During simulation, the laser energy was 200 mJ, the frequency was 50 Hz, the integration time was 20 min, and the range resolution was 105 m. Under the condition of depolarization, the statistical temperature uncertainty of the monostatic Raman lidar system less than 1 K was obtained up to 3180 m height in the daytime. The statistical error of water vapor mixing ratio was less than 0.001 g/kg up to 2400 m height during daytime. The simulation results show that the performance of daytime detection has been improved to some extent. © 2021, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
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共 17 条
  • [1] Shang Zhen, Xie Chenbo, Wang Bangxin, Et al., Pure rotational Raman lidar measurements of atmospheric temperature near ground in Beijing, Infrared and Laser Engineering, 46, 10, (2017)
  • [2] Liu Yang, Zhang Tianshu, Zhao Xuesong, Et al., Optical design and analysis of laser Radar spectrometer with high accuracy, Optics and Precision Engineering, 26, 8, pp. 74-79, (2018)
  • [3] Radlach M, Behrendt A, Wulfmeyer V., Scanning rotational Raman lidar at 355 nm for the measurement of tropospheric temperature fields, Atmospheric Chemistry & Physics, 8, 2, pp. 7569-7602, (2008)
  • [4] Hammann E, Behrendt A, Le Mounier F, Et al., Temperature profiling of the atmospheric boundary layer with rotational Raman lidar during the HD(CP)<sup>2</sup> Observational Prototype Experiment, Atmospheric Chemistry and Physics, 15, 5, pp. 2867-2881, (2015)
  • [5] Behrendt A, Nakamura T, Onishi M, Et al., Combined Raman lidar for the measurement of atmospheric temperature, water vapor, particle extinction coefficient, and particle backscatter coefficient, Applied Optics, 41, 36, pp. 7657-7666, (2002)
  • [6] Balin I, Serikov I, Bobrovnikov S, Et al., Simultaneous measurement of atmospheric temperature, humidity, and aerosol extinction and backscatter coefficients by a combined vibrational-pure-rotational Raman lidar, Applied Physics B: Lasers and Optics, 79, 6, pp. 775-782, (2004)
  • [7] Behrendt A, Wulfmeyer V, Hammann E, Et al., Profiles of second- to fourth-order moments of turbulent temperature fluctuations in the convective boundary layer: first measurements with rotational Raman lidar, Atmospheric Chemistry and Physics, 15, 10, pp. 5485-5500, (2015)
  • [8] Wang Yufeng, Gao Fei, Zhu Chengxuan, Et al., Raman lidar for atmospheric temperature, humidity and aerosols up to troposphere height, Acta Optica Sinica, 35, 3, (2015)
  • [9] Tan Min, Wang Bangxin, Zhuang Peng, Et al., Study on atmospheric temperature and water-vapor mixing ratio based on Raman lidar, Spectroscopy and Spectral Analysis, 40, 5, pp. 1397-1401, (2020)
  • [10] Cooney J., Measurement of Atmospheric Temperature Profiles by Raman Backscatter, Journal of Applied Meteorology, 11, 1, pp. 108-112, (1972)
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