摘要
激光雷达作为一种主动遥感探测工具,广泛用于大气环境等研究领域,特别是探测对流层内大气气溶胶和卷云的光学特性以及大气水平能见度。在阐述大气气溶胶探测原理及信号处理的基础上,提出一种工程可行的米散射激光雷达及数据处理的设计方案,利用此雷达对苏州城区大气气溶胶特性进行测量,并利用Fernald方法反演了其消光特性,通过实验数据分析了苏州城区的重要大气光学特性,充分显示了米散射激光雷达在大气特性探测领域的优越性。
Lidar as an active remote sensing detector is widely used in the environmental monitoring of urban atmosphere, specifically detecting the optical properties of aerosols and cirrus in the troposphere and horizontal visibility. On the basis of presenting lidar measuring principle and signal prOcessing,a system of compact Mie scattering lidar is proposed. Using the system,the optical properties of aerosols in the Suzhou city is measured,and the backscatter coefficient is obtained by Fernald algorithm. It analyzes the major characters of urban atmosphere by processing the measured data,and shows the superiority of laser lidar in the area of detecting the aerosols properties.
出处
《现代电子技术》
2009年第23期30-32,共3页
Modern Electronics Technique
关键词
激光雷达
米散射
气溶胶
消光特性
lidar
Mie scattering
aerosols
extinction characteristics
