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介绍了自行研制可用于白天探测大气气溶胶的AML-1激光雷达系统,分析了白天工作条件下激光雷达的各种噪声干扰,并给出了抑制噪声干扰的有效措施.其中,天空背景辐射噪声是激光雷达白天工作的主要干扰,通过接收视场角与激光束发散角的严格匹配以及采用高光谱透过率超窄带滤光片可大大抑制天空背景光的干扰.最后,给出了AML-1激光雷达白天测量大气边界层气溶胶的典型结果.
The AML-1 laser radar system, which can be used to detect atmospheric aerosols during the daytime, is introduced and various kinds of noise interference of lidar under daytime working conditions are analyzed. The effective measures to restrain the noise interference are given. Among them, the sky background radiation noise Is the main interference of Lidar working in the daytime and the interference of sky background light can be greatly suppressed by the strict matching between the received field angle and the divergence angle of the laser beam and the use of hyper-spectral transmittance ultra-narrowband filter.Finally, AML- 1 LIDAR Typical Results of Atmospheric Boundary Layer Aerosol Measurement During Daytime.