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Analysis techniques for the recovery of winds and backscatter coefficients from a multiple-channel incoherent Doppler lidar

机译：用于从多通道非相干多普勒激光雷达恢复风和后向散射系数的分析技术

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The University of Michigan has developed an incoherent-detection Doppler lidar system that continuously measures vertical profiles of horizontal winds and aerosol backscatter. An overview of the instrument is given, followed by a description of improvements that have been made to control the system stability Most notably, an active feedback system has been implemented to improve the laser frequency stability. A detailed forward model of the instrument is developed that includes many subtle effects, such as detector nonlinearity. A nonlinear least-squares inversion method is then described that permits the recovery of Doppler shift and aerosol backscatter without requiring assumptions about the molecular component of the signal. Examples of wind and aerosol backscatter profiles are shown to illustrate the capabilities of the fitting method.#1997 Optical Society of America
机译：密歇根大学开发了一种非相干检测多普勒激光雷达系统，该系统可连续测量水平风的垂直剖面和气溶胶的反向散射。给出了仪器的概述，然后介绍了为控制系统稳定性而进行的改进。最显着的是，已经实施了有源反馈系统以提高激光频率的稳定性。开发了一种详细的仪器正向模型，其中包括许多细微的影响，例如检测器非线性。然后介绍了一种非线性最小二乘反演方法，该方法允许恢复多普勒频移和气溶胶反向散射，而无需假设信号的分子成分。显示了风和气溶胶反向散射剖面的示例，以说明拟合方法的功能。＃1997美国光学学会

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