小型Mie散射激光雷达信号校准及能见度测量

详细介绍了小型Mie散射激光雷达近场信号的校准方法;数值模拟了理想情况下的平行光轴以及实际中光轴失调情况下的几何重叠因子,并对光轴失调的原因和影响进行了讨论;同时还介绍了利用多项式拟合确定几何重叠因子的实验方法,这种方法无需假设大气水平均匀.尝试利用Fernald迭代算法确定水平大气的消光系数,并与Vaisala能见度仪和AethalometerTM黑炭仪的测量结果进行了对比,具有很好的相关性,从而证明了上述方法的可靠性.

Signal correction and visibility measurement for compact Mie scattering lidar

Some correction methods for the compact Mie scattering lidar were introduced. Numerical simulations for the geometric overlapping factor of ideal parallel optical axis and actual misaligned optical axis were developed, and the formation reason and misalignment effect were analyzed. At the same time, the experimental method with Polynomial fit was used to get the geometric overlapping factor, without the assumption of homogeneous atmosphere. Measurement and analyses indicate the lidar was in good alignment, ...