| 半导体激光雷达的斜程能见度测量方法 |
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| 引用本文： | 岳斌,董晶晶,孙东松,沈法华,董吉辉,舒志峰. 半导体激光雷达的斜程能见度测量方法[J]. 红外与激光工程, 2009, 38(1) |
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| 作者姓名： | 岳斌 董晶晶 孙东松 沈法华 董吉辉 舒志峰 |
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| 作者单位： | 中国科学院安徽光学精密机械研究所大气光学重点实验室,安徽,合肥,230031;中国科学院安徽光学精密机械研究所大气光学重点实验室,安徽,合肥,230031;中国科学院安徽光学精密机械研究所大气光学重点实验室,安徽,合肥,230031;中国科学院安徽光学精密机械研究所大气光学重点实验室,安徽,合肥,230031;中国科学院安徽光学精密机械研究所大气光学重点实验室,安徽,合肥,230031;中国科学院安徽光学精密机械研究所大气光学重点实验室,安徽,合肥,230031 |
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| 摘 要： | 针对雾天或多云天气等不均匀大气中斜程能见度难以测量的问题,提出了利用905 nm半导体激光雷达探测大气斜程及水平能见度的方法,能够探测50～2 000 m能见度范围.介绍了半导体激光雷达的系统结构,利用激光雷达测量大气能见度的原理,探测大气斜程平均能见度值.详细阐述了一种稳定的通过大气消光系数反演能见度的迭代算法,可实现迭代边界值最大距离的自动化选取,提高了迭代结果的可靠性.通过模拟计算,对该迭代方法的精度进行了评估.结果显示:50、200、800、2 000 m的能见度,迭代精度分别为33%,2%,0.1%,0.3%,由于采样点少导致极低能见度的迭代精度较低.
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| 关 键 词： | 大气斜程能见度 半导体激光雷达 大气消光系数 迭代算法 |
Measuring method of atmospheric slant visibility with semiconductor lidar |
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| YUE Bin,DONG Jing-jing,SUN Dong-song,SHEN Fa-hua,DONG Ji-hui,SHU Zhi-feng. Measuring method of atmospheric slant visibility with semiconductor lidar[J]. Infrared and Laser Engineering, 2009, 38(1) |
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| Authors: | YUE Bin DONG Jing-jing SUN Dong-song SHEN Fa-hua DONG Ji-hui SHU Zhi-feng |
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| Affiliation: | Key Laboratory for Atmospheric Optics;Anhui Institute of Optics and Fine Mechanics;Chinese Academy of Sciences;Hefei 230031;China |
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| Abstract: | A method was presented, which was used for measuring atmospheric slant integral visibility with semiconductor lidar in conditions of inhomogeneous atmosphere such as foggy and cloudy. This technique makes it possible to measure slant and horizontal visibilities from 50m to 2000m. Configuration of the 905nm semiconductor lidar which is under developing was introduced; principles of measuring atmospheric visibility with lidar were presented, which can detect slant visibility through the whole atmospheric laye... |
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| Keywords: | Atmospheric slant visibility Semiconductor lidar Atmospheric extinction Iteration arithmetic |
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