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介绍了基于双Fabry!Perot标准具的测风激光雷达的工作原理,分析了大气分子散射对风速测量的影响,并给出了相应的数据处理方法。模拟并分析了两种不同迭代初值在1～3次迭代时产生的系统测量误差,给出了1km和5km处风速的测量误差。利用自行研制的一台多普勒测风激光雷达对合肥地区对流层风场进行测量,并用两种方法处理了实验数据。结果表明,改进的数据处理方法是切实可行的。
The working principle of the wind measurement lidar based on double Fabry! Perot etalon is introduced. The influence of atmospheric molecular scattering on wind speed measurement is analyzed and the corresponding data processing methods are given. The measurement error of the system, which is generated when the initial values of two different iterations are iterated 1 to 3 times, is simulated and analyzed. The measurement errors of wind speed at 1km and 5km are given. A Doppler wind lidar developed by ourselves was used to measure the tropospheric wind field in Hefei, and the experimental data were processed by two methods. The results show that the improved data processing method is feasible.