多波长激光的大气消光系数相关性及实时反演计算研究
Received:February 16, 2009  Revised:February 16, 2009  点此下载全文
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WU Rong-hua Electronic Eng. College., Naval Univ. of Engineering, Wuhan bigbird_tx@126.com 
基金项目:国家高技术研究发展计划(863计划)
中文摘要:利用Mie散射理论并结合激光多点断层测量技术,得到了不同波长消光系数之间的相关关系。使用自主研制的激光遥感式后向散射能见度测量仪,利用实测数据得到了1.06um波长激光的大气消光系数,进而利用不同波长消光系数间的相关关系实时反演计算0.532um、0.86um、1.57um和3.47um波长激光的大气消光系数,并与实测0.532um波长的大气消光系数进行了比对,结果表明可以使用大气消光系数相关性实时反演计算红外辐射大气传输并建立红外辐射实时大气传输修正模型。
中文关键词:大气光学,Mie散射,消光系数,消光效率因子,红外辐射
 
Multi-Wavelength Laser Atmospheric Extinction Correlativity and Real-time Inversion Computation Study
Abstract:The correlativity of extinction coefficients at different wavelengths was get by Mie scattering theory and the laser multipoint fault measuring techniques. The extinction coefficient at the wavelength of 1.06um was measured with the laser remote sensing back scattering hazemeter produced by ourselves. Then the extinction coefficients at the wavelength of 0.532um, 0.86um, 1.57um and 3.47um were inversely calculated real-timely with the correlativity of extinction coefficients at different wavelengths and were compared with the practical extinction coefficient at the wavelength of 0.532um. The results showed that it is feasible to inversely calculate the infrared atmospheric propagation and establish the infrared radiation real-time atmospheric propagation correcting model with the correlativity of extinction coefficients at different wavelengths.
keywords:Atmospheric optics, Mie scatter, Extinction coefficient, Extinction efficiency factor, Infrared radiation
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Copyright:《Journal of Infrared And Millimeter Waves》