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用于反演云层高度的记忆式滑动窗口积分算法
引用本文:韩道文,刘文清,张玉钧,刘建国,陆亦怀,赵南京.用于反演云层高度的记忆式滑动窗口积分算法[J].强激光与粒子束,2008,20(1):1-5.
作者姓名:韩道文  刘文清  张玉钧  刘建国  陆亦怀  赵南京
作者单位:中国科学院 安徽光学精密机械研究所 环境与光学技术重点实验室, 合肥 230031
基金项目:国家高技术研究发展计划(863计划)
摘    要: 记忆式滑动窗口积分算法选取一定宽度的窗口,从地面开始滑动,对窗口内的信号进行积分,根据积分值和前一时刻的云层信息来反演云层高度。该算法可消除信号中的噪声,叠加放大信号中的云层信息,将云层与气溶胶加以区分。用该算法处理了Vaisala云高仪的数据,并与云高仪的结果进行了对比,结果表明,记忆式滑动窗口积分算法在反演尝云层信息信息时具有较高的准确性和可靠性。

关 键 词:激光雷达  云层高度  反演  记忆式滑动窗口积分算法
文章编号:1001-4322(2008)01-0001-05
收稿时间:2007-06-19
修稿时间:2007-10-29

Memorable glide window integral algorithm for retrieving cloud height
HAN Dao-wen,LIU Wen-qing,ZHANG Yu-jun,LIU Jian-guo,LU Yi-huai,ZHAO Nan-jing.Memorable glide window integral algorithm for retrieving cloud height[J].High Power Laser and Particle Beams,2008,20(1):1-5.
Authors:HAN Dao-wen  LIU Wen-qing  ZHANG Yu-jun  LIU Jian-guo  LU Yi-huai  ZHAO Nan-jing
Institution:Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, P.O.Box 1125, Hefei 230031, China
Abstract:The algorithm of retrieving cloud height was studied. The intensity and the pulse width of the cloud backscatter is different from the atmospheric aerosol and the random noise. The cloud height could be determined by analyzing lidar returns. A selected window gliding from the ground and the integral of signals in the window is calculated. The random noise could be eliminated and the cloud information could be distinguished from aerosol by window integral. Referred to previous cloud information, the current cloud height is retrieved according to the window integral. Compared with Vaisala ceilometer, the memorable glide window integral algorithm could be used to retrieve the information of cloud exactly and reliably.
Keywords:Lidar  Cloud height  Retrieving  Memorable glide window integral algorithm
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