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作为一种激光探测大气气溶胶特征的新技术 ,采用分子滤波技术的高光谱分辨率激光雷达在国际上得到了发展。给出了对这种YAG激光雷达系统的理论分析并建立了实验装置 ,其接收望远镜孔径为 30 0mm ,YAG激光脉冲能量为 15 0mJ。通过数值模拟与初步测量估计了激光雷达性能 ,测量了大气回向散射信号 ,测量结果表明实验结果与理论分析一致。
As a new technique for laser detection of atmospheric aerosols, hyperspectral resolution lidars using molecular filtering techniques have been developed internationally. The theoretical analysis of this YAG laser radar system is given and an experimental setup is established. The aperture of the receiving telescope is 300 mm and the YAG laser pulse energy is 150 mJ. The performance of lidar was estimated by numerical simulation and preliminary measurement, and the backscattering signal of the atmosphere was measured. The measurement results show that the experimental results are consistent with the theoretical analysis.