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LIDAR CALIBRATION TECHNIQUE USING LABORATORY-GENERATED AEROSOLS

机译：实验室产生的气溶胶的激光标定技术

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A new calibration technique for continuous-wave Doppler lidars that uses an aerosol scattering target has been developed. Calibrations with both single- and many-particle scattering were performed at the same lidar operating conditions as in atmospheric measurements. The calibrating targets, simulating atmospheric aerosols, were laboratory-generated spherical silicone oil droplets with known complex refractive indices and sizes, hence with known single-particle backscatter cross sections as obtained from Mie theory. Measurements of lidar efficiency with the conventional hard target calibration method were consistently higher by a factor of similar to 2 than measurements with the aerosol calibration technique. This result may have important implications for lidar backscatter estimates both for aerosol modeling efforts and for optimal design of future lidar systems. The aerosol calibration method provides a validation of basic lidar theory for particle scattering for coherent detection. (C) 1996 Optical Society of America [References: 30]
机译：已经开发出一种使用气溶胶散射目标的连续波多普勒激光雷达的新校准技术。在与大气测量相同的激光雷达操作条件下，执行了单颗粒和多颗粒散射的校准。模拟大气气溶胶的校准目标是实验室产生的球形硅油小滴，具有已知的复杂折射率和大小，因此具有从Mie理论获得的已知的单粒子反向散射截面。与使用气溶胶校准技术进行的测量相比，传统的硬目标校准方法对激光雷达效率的测量始终高出约2倍。这一结果可能对激光雷达后向散射估计，气溶胶建模工作以及未来激光雷达系统的最佳设计都具有重要意义。气溶胶校准方法为用于相干检测的粒子散射提供了激光雷达基本理论的验证。 （C）1996年美国眼镜学会[参考：30]

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