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Turbulence-induced measurement errors in coherent differential absorption lidar ground systems

机译:相干差分吸收式激光雷达地面系统中湍流引起的测量误差

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摘要

The presence of atmospheric refractive turbulence makes it necessary to use simulations of beam propagation to examine the uncertainty added to the differential absorption lidar (DIAL) measurement process of a practical heterodyne lidar. The inherent statistic uncertainty of coherent return fluctuations in ground lidar systems profiling the atmosphere along slant paths with large elevation angles translates into a lessening of accuracy and sensitivity of any practical DIAL measurement. This technique opens the door to consider realistic, nonuniform atmospheric conditions for any DIAL instrument configuration.
机译:大气折射湍流的存在使得有必要使用光束传播的模拟来检查实际外差激光雷达的差分吸收激光雷达(DIAL)测量过程中增加的不确定性。沿大仰角的倾斜路径对大气进行剖析的地面激光雷达系统中相干回波波动的固有统计不确定性,会降低任何实际DIAL测量的准确性和灵敏度。该技术为考虑任何DIAL仪器配置的现实,不均匀的大气条件打开了大门。

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