中文题目: 机载激光雷达测量二氧化碳浓度误差分析
外文题目: Errors analysis of dioxide carbon concentrations measurement by airborne lidar
作者: 史成龙; 刘继桥; 毕德仓; 李世光; 刘丹; 陈卫标
刊名: 红外与激光工程
年: 2016 卷: 45 期: 5 页： 530001
中文关键词:
二氧化碳浓度; 路径积分差分吸收; 机载激光雷达; 误差
英文关键词:

CO_2 concentration; integrated path differential absorption (IPDA); airborne lidar; error
中文摘要:
差分吸收激光雷达是高精度测量大范围二氧化碳浓度的有效手段。研究了机载路径积分差分吸收激光雷达测量二氧化碳柱线浓度的主要误差项,分析了这些误差项导致的二氧化碳柱线浓度反演误差。介绍了机载差分吸收激光雷达基本工作原理,并理论分析了大气温度、压强和水汽不确定性误差,激光频率稳定性和飞机姿态速度测量不确定性等系统误差,以及不同地表反射率产生的随机误差。分析结果表明:在二氧化碳浓度380 ppm(1 ppm=10~(-6))时,机载激光雷达二氧化碳柱线浓度综合测量误差约为0.71 ppm,满足1 ppm的二氧化碳柱

英文摘要:
Differential absorption lidar is an effective methods for high -precision CO_2 concentration measurements. In this paper, the major error sources of airborne differential absorption lidar CO_2 measurement were studied, and CO_2 concentration errors caused by them were analyzed. The airborne differential absorption lidar principle was introduced first, CO_2 concentration errors from atmospheric temperature, pressure and water vapor uncertainties, laser frequency stability and the aircraft speed and attitude measurements uncertainties, as well as random error were analyzed. The results show that airborne differential absorption lidar measured CO_2 column concentration error is about 0.71 ppm (1 ppm=10~(-6)) for 380 ppm atmosphere CO_2 concentration, which meets the 1 ppm accuracy requirement of CO_2 concentration measurement.


文献类型: 期刊论文
正文语种: Chinese
收录类别: CSCDEI
DOI: 10.3788/IRLA201645.0530001


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