拉曼散射激光雷达反演二氧化碳测量结果的可靠性分析

发布时间：2018-02-23 21:28

本文关键词： 拉曼散射激光雷达大气二氧化碳混合比　出处：《红外与激光工程》2014年04期 　论文类型：期刊论文

【摘要】：拉曼散射法测量大气二氧化碳(CO2)是一种利用大气中CO2分子和N2分子与激光相互作用产生Raman散射频移来实现探测CO2混合比分布的探测技术。介绍了中国科学院安徽光学精密机械研究所自主研制的拉曼散射激光雷达系统,以及用于大气CO2时空间分布测量的原理和方法。将两台事先校准过的CO2分析仪布置在激光雷达水平光路的发射端和1km位置进行同时测量,实验结果表明:两台分析仪分别与激光雷达近端和远端得到的CO2混合比随时间的变化具有较好的一致性,统计一整夜测量结果的平均值分别相差0.8ppm和3.51ppm;结合激光光路下垫面的不同对近端与远端结果的差异进行了分析说明,充分表明了拉曼散射激光雷达测量结果的可靠性。
[Abstract]:Raman scattering measurements of atmospheric carbon dioxide (CO2) is a kind of atmospheric CO2 and N2 molecules and the interaction of laser to achieve the detection of CO2 mixture ratio detection technology. The distribution of Raman scattering frequency shift produced the Raman scattering lidar system of Anhui Optical Precision Machinery Research Institute Chinese independently developed, and the principle and method for when the spatial distribution of atmospheric CO2 measurements. The arrangement of the CO2 two analyzer calibrated prior to laser radar level optical transmitter and 1km positions were measured at the same time, the experimental results show that the hybrid CO2 two analyzer respectively and laser radar has a proximal end and a distal end has better consistency than changing with time. One night, a statistical average of the measurement results are 0.8ppm and 3.51ppm respectively; combined with laser light of different underlying surface on the proximal and distal differences analyzed said The reliability of the Raman scattering laser radar measurement results is fully demonstrated.

【作者单位】：中国科学院安徽光学精密机械研究所中国科学研究院大气成分与光学重点实验室;
【基金】：国家自然科学基金(41005015) 中国科学院知识创新方向性项目(KJCX2-EW-N07) 科技部基础性工作专项重点项目(2007FY110700)
【分类号】：TN958.98

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