光散射学报, 2004, 16 (2): 149, 网络出版: 2006-04-20
Mie散射大气激光雷达回波信号消光系数边界值估算
Estimation of Extinction Efficient Boundary Value for Mie Lidar Return Signal
大气激光雷达 消光系数边界值 大气消光系数 最小二乘法拟合 Lidar Extinction efficient boundary values Extinction coefficient Least square curve fitting
摘要
报道了一种使用最小二乘法拟合大气激光雷达回波信号,计算消光系数边界值的算法.无云层天气条件下,利用最小二乘法对回波信号全程拟合获得大气消光系数边界值;有云层天气下,先将激光雷达信号在大气中的传输光路分段为云层区和非云层区,忽略回波信号中的云层信息,假设非云层区大气近似均匀,利用最小二乘法拟合获得大气消光系数边界值.
Abstract
A new type of method for estimating extinction efficient boundary values with least square fitting for inversion of slant angle Lidar measurement is reported. In cloudless weather, the boundary values of extinction is calculated by fitting Lidar return signal. For cloudy weather, firstly, the measured region is divided into cloudy and cloudless section. Then it is assumed that the cloudless region is homogenous circumstance. The boundary values of extinction is calculated by fitting Lidar return signal except the cloudy region.
贺应红, 郑玉臣, 程娟, 左浩毅, 杨经国. Mie散射大气激光雷达回波信号消光系数边界值估算[J]. 光散射学报, 2004, 16(2): 149. 贺应红, 郑玉臣, 程娟, 左浩毅, 杨经国. Estimation of Extinction Efficient Boundary Value for Mie Lidar Return Signal[J]. The Journal of Light Scattering, 2004, 16(2): 149.
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