摘要
利用大气辐射传输模型MODTRAN对激光制导波段的大气透过特性进行了仿真计算,分析了大气分子、气溶胶、雾、降雨、水平能见度以及不同探测路径对激光制导波段透过率的影响,结果表明:1.06μm激光在大气传输中大气分子吸收衰减作用非常小,基本可忽略不计;气溶胶的影响较大,且透过率随着能见度的降低而减小;雾和降雨对激光的衰减作用非常明显,在大雾或者中雨、大雨的条件下,激光的透过率非常小,基本很难通过。这些结论对于1.06μm激光制导武器的论证、研制、仿真和作战具有积极的意义。
The simulation calculation on atmospheric transmission properties of laser-guided band is carried on by using the MODTRAN model.The effects of atmospheric molecules,aerosol,fog,rain,horizontal visibility and different path on transmission of laser-guided band are considered.It is pointed out that,in the course of the atmospheric transmission of 1.06 μm laser,the role of atmospheric molecules absorption and attenuation can be regarded as zero.The effect of aerosol is more obvious and the transmission is reducing with the decrease of visibility.At the same time,the 1.06 μm laser can hardly get across the atmosphere when it is heavy fog,moderate rain or heavy rain.The conclusions have positive significance while the laser-guided weapons are argued,developed,simulated and used in the war.
出处
《气象与环境科学》
2011年第2期64-68,共5页
Meteorological and Environmental Sciences
关键词
大气环境
激光制导
MODTRAN
透过率
atmospheric environment
laser-guided
MODTRAN
atmospheric transmission
