差分吸收激光雷达几何因子实验确定方法

J4 ›› 2013, Vol. 30 ›› Issue (1): 93-97.

差分吸收激光雷达几何因子实验确定方法

范广强，刘建国，刘文清,陆亦怀,张天舒,赵雪松，董云升

中国科学院安徽光学精密机械研究所中国科学院环境光学与技术重点实验室，安徽，合肥，230031

出版日期:2013-01-28 发布日期:2013-01-11
通讯作者: 刘建国（1968-）甘肃天水人，博士，研究员，主要从事环境污染光学监测新技术、目标散射特性及遥感监测技术研究。 E-mail:jgliu@aiofm.ac.cn
作者简介:范广强（1982 - ）山东聊城人，博士生，主要从事激光雷达方面的研究。E-mail：gqfan@aiofm.ac.cn
基金资助:
国家863计划（2009AA06A311）和国家重大科学仪器设备开发专项（2011YQ120024）

Experimental determination of the lidar overlap function in differential absorption lidar

Fan Guangqiang, Liu Jianguo, Zhang Tianshu, Zhao Xuesong, Dong Yunsheng, Lu Yihuai, Liu Wenqing

Key Laboratory of Environment optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China

Published:2013-01-28 Online:2013-01-11

摘要/Abstract

摘要：

差分吸收激光雷达发射光束与接收视场的重叠区域用几何因子函数来描述，几何因子是差分吸收激光雷达的重要参数。提出了一种实验方法，实验使用米散射激光雷达和差分吸收激光雷达同时测量信号，通过对比分析两台激光雷达采集信号计算得到的气溶胶散射比廓线，获得差分吸收激光雷达的几何因子。该方法的优点在于不需要预先得到精确度高的激光雷达参数，比如望远镜直径，光束发散角，望远镜接收视场角等。该方法的应用有利于减少近地面差分吸收激光雷达测量臭氧廓线的误差，提高差分吸收激光雷达的探测性能，有助于研究近地面层的臭氧时空分布特征。

关键词: 差分吸收激光雷达, 米散射激光雷达, 几何因子, 气溶胶修正, 对流层臭氧

Abstract:

The lidar overlap function describes the overlap between the laser beam and the receiver of field of view in differential absorption lidar. It is an important system parameter in differential absorption lidar. In view of this fact, this work presents an experimental determination method of the lidar overlap function based on the comparison of aerosol scattering ratio profile derived from the signals measured by differential absorption lidar and Mie lidar simultaneously. The approach provide a means to determine the lidar overlap function without an explicit knowledge of all lidar system parameter, such as the telescope diameter, the laser beam divergence, the telescope of field of view et al. The application of the proposed methodology could reduce the ozone measurement error of differential absorption liar and improve the potential of differential absorption lidar to investigate the spatial and temporal distribution characteristics of ozone.

Key words: differential absorption lidar, Mie lidar, lidar overlap function, aerosol correction, tropospheric ozone

范广强，刘建国，刘文清,陆亦怀,张天舒,赵雪松，董云升. 差分吸收激光雷达几何因子实验确定方法[J]. J4, 2013, 30(1): 93-97.

Fan Guangqiang, Liu Jianguo, Zhang Tianshu, Zhao Xuesong, Dong Yunsheng, Lu Yihuai, Liu Wenqing. Experimental determination of the lidar overlap function in differential absorption lidar[J]. J4, 2013, 30(1): 93-97.

参考文献

[1] Tetsuo Fukuchi, Takashi Fujii, Nianwen Cao et al. Tropospheric O3 measurement by simultaneous differential absorption lidar and null profiling and comparison with sonde measurement
[J]. 2001 Society of Photo-Optical Insrumentation Engineers, 2001, 40(9) :1994-1949.

[2] Grady J. Koch, Bruce W. Barnes, Mulugeta Petros, et al. Coherent differential absorption lidar measurements of CO2
[J]. Applied Optics, 2004, 43(26):5092-5099.

[3] Hu Shunxing, Hu Huanling, Zhou Jun et al.. Dual-DIAL : a pair of wavelengths for high precise measurements of ozone
[J]. ACTA Meteorologica SINICA,2002,16(2) :242~252.

[4] Masahisa Nakazato, Tomohiro Nagai, Tetsu Sakai, et al. Tropospheric ozone differential-absorption lidar using stimulated Raman scattering in carbon dioxide
[J]. Applied Optics, 2007, 46(12):2269-2279.

[5] Tao Zongming, Chen Yu, Chu Delin, et al. Atmospheric backscattering correction for ozone measurement with AML-2 mobile lidar
[J]. Journal of atmospheric and environmental optics(大气与环境光学学报), 2008, 3: 401-406 (in Chinese).

[6] Zhang Gaixia, Zhang Yinchao, Tao Zongming, et al. Lidar geometrical form factor and its effect on aerosol detection
[J]. Chinese Journal of Quantum Electronics(量子电子学报), 2005, 22(2):299~304(in Chinese)

[7] Wang Shaolin, Cao Kaifa, Hu Shunxing et al. Analysis and determination of lidar geometrical factor
[J]. Laser Technology,2008,32(2): 0147-150 (in Chinese)

[8] Kang Sheng, Xia mingzhuo, Wang Jiangan et al. Influence of Anti-Coaxial lidar system parameters on Geometrical factor
[J]. Optics & Optoelectronic technology, 2012, 10(2):47-51 (in Chinese)
[9] U. Wandinger, A. Ansmann. Experimental determination of the lidar overlap profile with Raman lidar
[J]. Applied Optics, 2002, 41(3):511~514

[10] Nobuo Sugimoto. Lidar methods for measuring distributions and characteristics of aerosols and clouds
[M]. SPIE, 2003, 5226: 223~233.

[11] R. A. Ferrare, S. H. Melfi, C. N. Whiteman et al. Raman lidar measurement of aerosol extinction and backscatter 1. Methods and Comparisons
[J]. J. Geo. Res., 1998, 103(16): 19663-19672.

[12] R. L. Collins, Kenneth P. Bowman, Chester S. Gardner. Polar Stratospheric Clouds at the South Pole in 1990: Lidar Observations and Analysis
[J]. J. Geo. Res., 1993, 98: 1001-1010.