使CO_2浓度测量误差减小的星载激光雷达波长优化 | |
谢杨易; 刘继桥; 姜佳欣; 陈卫标 | |
刊名 | 红外与激光工程
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2014 | |
卷号 | 43期号:1页码:88 |
关键词 | 激光遥感 波长优化 CO_2浓度 积分路径差分吸收 测量误差 |
其他题名 | Wavelengths optimization to decrease error for a space-borne lidar measuring CO_2 concentration |
中文摘要 | 研究了星载积分路径差分吸收(IPDA)激光雷达系统工作波长与大气CO_2分子柱线浓度测量误差之间的关系,并优化波长以降低测量误差。首先介绍CO_2分子柱线浓度测量原理,理论分析并模拟仿真了系统随机误差、温度不确定性误差、频率不稳定性误差和水蒸汽干扰误差随激光雷达工作波长变化关系,优化工作波长使浓度测量总误差达到最小值。最终选定激光雷达on-line波长为63612250cm~(-1),off-line波长为6360.99cm~(-1),并仿真计算得到温度不确定性为1K、频率不稳定度为0.6MHz时,共导致的CO_2柱线浓度测量误差为0.587xl0~(-6),达到CO2浓度测量精度1xl0~(-6)的要求,为星载IPDA激光雷达系统实现高精度CO2柱线浓度探测优化系统参数提供了参考。 |
英文摘要 | The relationship between atmospheric column-averaged CO_2 concentration measurement errors and operating wavelengths of space-borne integrated path differential absorption (IPDA) lidar was studied. The column-averaged CO_2 concentration measurement principle was presented, and the system random error, temperature uncertainty error, frequency drift error and H_2O interference error as a function of the operating wavelengths of lidar were analyzed. The operating wavelengths were optimized to minimize the total concentration measurement error. For optimal IPDA lidar on-line and off-line wave number of 6361.2250 cm~(-1) and 6360.99 cm~(-1), the total column-averaged CO_2 concentration measurement error was calculated to be 0.587x 10~(-6) with lK temperature error and 0.6MHz frequency drift error, which meets the requirement of the column-averaged CO_2 concentration measurement with 1 xl0~(-6) accuracy. The optimized wavelengths are applicable for retrieval of column-averaged CO_2 concentration with high precision for space-bore IPDA system. |
收录类别 | CSCD |
语种 | 中文 |
CSCD记录号 | CSCD:5062784 |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.siom.ac.cn/handle/181231/13471] ![]() |
专题 | 上海光学精密机械研究所_空间激光信息技术研究中心 |
作者单位 | 1.谢杨易, 上海光学精密机械研究所, 上海市全固态激光与应用重点实验室, 上海 201800, 中国. 2.刘继桥, 上海光学精密机械研究所, 上海市全固态激光与应用重点实验室, 上海 201800, 中国. 3.姜佳欣, 上海光学精密机械研究所, 上海市全固态激光与应用重点实验室, 上海 201800, 中国. 4.陈卫标, 上海光学精密机械研究所, 上海市全固态激光与应用重点实验室, 上海 201800, 中国. |
推荐引用方式 GB/T 7714 | 谢杨易,刘继桥,姜佳欣,等. 使CO_2浓度测量误差减小的星载激光雷达波长优化[J]. 红外与激光工程,2014,43(1):88. |
APA | 谢杨易,刘继桥,姜佳欣,&陈卫标.(2014).使CO_2浓度测量误差减小的星载激光雷达波长优化.红外与激光工程,43(1),88. |
MLA | 谢杨易,et al."使CO_2浓度测量误差减小的星载激光雷达波长优化".红外与激光工程 43.1(2014):88. |
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