多波长激光的大气消光系数相关性及实时反演计算研究

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波长为1.06μm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了波长为0.532μm、0.86μm、1.57μm和3.47μm激光的大气消光系数,并与实测波长为0.532μm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.

Multi-Wavelength Laser Atmospheric Extinction Correlativity and Real-time Inversion Computation Study

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.