小型米散射激光雷达测量雾中能见度的研究  

Micro-Mie Scattering Lidar for Fog Visibility Measurement

作　　者：石荣 李昌熹 SHI Rong;Chang-hee Lee(Liangjiang International College,Chongqing University of Technology,Chongqing 400054,China;School of Electrical Engineering,Korea Advanced Institute of Science and Technology,Dejeong 34141,South Korea)

机构地区：[1]重庆理工大学两江国际学院,重庆400054 [2]韩国科学技术院电子工程学院,韩国大田34141

出　　处：《重庆理工大学学报（自然科学）》2021年第1期208-213,共6页Journal of Chongqing University of Technology：Natural Science

摘　　要：针对雾中能见度探测问题,利用准直镜代替了传统的发射望远镜,透镜组作为激光接收系统,设计了一套小型米散射激光雷达系统,实现了系统的小型化和紧凑化;计算了系统的几何重叠因子,从而得到回波信号的有效提取距离。通过Collis斜率法对室内雾探测结果进行反演获得雾的消光系数和雾中能见度及其他变化特征。实验结果表明:小型米散射系统对雾中能见度的探测是可行的。We demonstrated a micro-Mie scattering lidar.For miniaturization,we used a collimating mirror instead of a conventional transmitting telescope and a lens set at receiving part.The geometric overlap factor of the designed optical system was calculated to obtain effective inversion distance of echo signals.The fog was generated by using a fog generator inside of laboratory.Then,the Collis slope method was used for estimation of visibility and extinction ratio.The experimental results show feasibility of visibility detection with a simple and compact micro-Mie scattering lidar.

关 键 词：小型米散射激光雷达 雾 能见度 消光系数 反演方法 

分 类 号：TN958.98[电子电信—信号与信息处理]