大气与环境光学学报 ›› 2012, Vol. ›› Issue (2): 95-100.

• 大气光学 • 上一篇    下一篇

1.06μm激光大气衰减系数理论计算模型研究

陈玉茹,李晴,王红娟   

  1. (61251部队,河北 秦皇岛,066102)
  • 出版日期:2012-03-28 发布日期:2012-03-29
  • 通讯作者: 陈玉茹(1982-),女,合肥人,工程师,硕士,主要研究方向激光大气传输、雷达与光电信息融合. E-mail:chenrebeca@126.com
  • 作者简介:陈玉茹(1982-),女,合肥人,工程师,硕士,主要研究方向激光大气传输、雷达与光电信息融合.

Research of the Theoretic Calculation Model of 1.06 μm Laser Atmosphere Attenuation Coefficient

CHEN Yu-ru, LI Qing, WANG Hong-juan   

  1. (61251 command, Qinhuangdao 066102, China)
  • Published:2012-03-28 Online:2012-03-29

摘要:

气溶胶的复杂性及难以现场测量性造成了1.06μm激光传输特性与气候、地域密切相关且难以计算,文章在经典大气传输理论模型的基础上,提出了1.06μm激光大气衰减系数理论计算模型的构建方法,将理论计算与实际天气情况相结合,实现了1.06μm激光衰减特性的实时计算,简化了激光大气衰减特性的工程计算。通过绥中地区不同能见度情况下激光衰减系数的实测实验,得到了能见度分别为2.5km、3km、5km、10km、12km、14km、20km七种能见度下的1.06μm激光大气传输衰减系数,构建了绥中地区激光大气衰减系数理论计算模型,验证了该方法的可行性。

关键词: 激光大气传输, 衰减系数, 气溶胶, 能见度

Abstract:

1.06μm laser atmosphere transmission characteristics are related with weather and zone closely, because of the complexity of the aerosol particles and the difficulties of real-time measurement. And it is difficult to calculate the transmission characteristics. A theoretic calculation model of 1.06μm laser atmosphere attenuation characteristics was proposed. The theoretic calculation was combined with the real information of weather, which realized the real-time calculation of 1.06μm laser atmosphere attenuation characteristics. The engineering calculation of laser atmosphere attenuation characteristics was simplified by the method. The attenuation coefficients of 1.06μm laser were found at 2.5km、3km、5km、10km、12km、14km、20km with seven kinds of visibility through the experiments, and the theoretic calculation model of laser atmosphere attenuation character in Suizhong area, China, was found efficiently, which validated the feasibility of the proposed method.

Key words: laser atmosphere transmission, attenuation coefficient, aerosol, visibility

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