| 钠多普勒激光雷达大气参数反演方法 |
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| 引用本文： | 徐丽,胡雄,闫召爱,程永强,郭商勇.钠多普勒激光雷达大气参数反演方法[J].红外与激光工程,2009,38(1). |
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| 作者姓名： | 徐丽 胡雄 闫召爱 程永强 郭商勇 |
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| 作者单位： | 1. 中国科学院空间科学与应用研究中心,北京,100190;中国科学院研究生院,北京,100049
2. 中国科学院空间科学与应用研究中心,北京,100190 |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划)，中国科学院知识创新工程重要方向项目 |
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| 摘 要： | 钠多普勒激光雷达以75～110 km大气层中的Na原子为示踪物,由接收到的共振荧光散射回波光子数反演该高度范围内大气温度、风场及钠原子数密度廓线.研究钠激光雷达大气风场和温度反演的方法,分析激光雷达光子计数中的脉冲堆积效应和钠层吸收对反演结果的影响,并提出改正方法.将该方法用于美国伊利诺斯大学激光雷达实测数据的反演,反演结果与该大学的结果相符合,验证了反演方法的正确性.最后对测量数据进行了误差分析,给出噪声光子数引起的误差剖面及实验测量精度.
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| 关 键 词： | 钠多普勒激光雷达 大气参数反演 回波光子数 误差分析 |
Retrieval method of atmospheric parameters for a Sodium Doppler Lidar |
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| XU Li,HU Xiong,YAN Zhao-ai,CHENG Yong-qiang,GUO Shang-yong.Retrieval method of atmospheric parameters for a Sodium Doppler Lidar[J].Infrared and Laser Engineering,2009,38(1). |
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| Authors: | XU Li HU Xiong YAN Zhao-ai CHENG Yong-qiang GUO Shang-yong |
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| Affiliation: | 1.Center for Space Science and Applied Research;Chinese Academy of Sciences;Beijing 100190;China;2. Graduate University of Chinese Academy of Sciences;Beijing 100049;China |
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| Abstract: | The Sodium Doppler Lidar can be used to retrieve the atmospheric winds, temperatures and profile of photon number of Na atoms according to the received resonance fluorescence scattering photon echoes from the tracer of Na atoms in the Sodium layer from 75km to 110km altitudes. The retrieval method of lidar temperatures and winds was investigated. The influences of the pulse accumulated effects and Sodium layer absorptions on the retrieval results were analyzed, and their correction methods were given. The r... |
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| Keywords: | Sodium Doppler Lidar Retrieval of atmospheric parameters Photon echoes Error analysis |
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