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为了探测大气气溶胶1064 nm波长后向散射系数垂直廓线和大气水平能见度,研制了一台车载式1064 nm米氏散射激光雷达系统(MMSL)。介绍了该激光雷达系统的结构和技术指标,叙述了光学机械结构的设计与装校,解决了激光雷达系统结构的稳定性、激光发射光束与接收光学单元光轴的平行以及运输过程中的防振等问题。简要叙述了相关的数据处理方法,给出了该激光雷达与美国Belfort 6230A能见度仪探测大气能见度的对比结果,两者具有较好的一致性。与较早前研制成功并已应用于常规观测的一台532 nm米氏散射激光雷达进行了大气后向散射系数的对比验证实验,两者的探测结果具有很好的相关性。结果表明,该激光雷达具有较高可靠性和准确性。
In order to detect the vertical profile of atmospheric aerosols backscatter at 1064 nm and atmospheric visibility, an onboard 1064 nm Mie scattering lidar system (MMSL) was developed. The structure and technical specifications of this laser radar system are introduced. The design and installation of the optical mechanical structure are described. The stability of the laser radar system is solved. The laser beam is parallel to the optical axis of the receiving optical unit and the anti- Vibration and other issues. A brief description of the related data processing methods is given, and the comparison between the lidar and the Belfort 6230A Visible Airborne Visibility Analyzer is given. The two have good agreement. Compared with a 532 nm Miehman scattering lidar, which has been successfully developed and has been applied to conventional observation, the backscattering coefficient of the atmosphere has been compared and verified. The results of the two methods have a good correlation. The results show that the laser radar has high reliability and accuracy.