基于光角度散射法的弥散介质多种辐射参数联合反演研究

Retrieval of Various Radiative Parameters of the Dispersion Medium Based onthe Angular Light-Scattering Measurement Method

本文基于光角度散射法,对弥散介质多种辐射特性参数进行了联合反演。此外,本文还提出了一种基于敏感度分析和主成分分析的测量角度优化筛选方案,用以寻找反演精准度较高的测量角度。研究表明:采用角度散射法对弥散介质多种辐射特性测量参数进行联合反演时,对于前向散射占优或者后向散射占优弥散介质,优化测量角度范围分别推荐为(0°,40°]和[140°,180°);与随机测量角度相比,优化筛选的测量角度能确保反演结果精度,且在5%的随机测量误差下,仍能获得合理的反演结果。

The angular light-scattering measurement method was proposed to study simultaneous inversion of various parameters of the dispersion medium.Moreover,an optimized selection principle of angular light-scattering measurement signals on the basis of sensitivity analysis and principle component analysis was proposed to obtain more useful measurement signals to improve the retrieval accuracy.Results revealed that when the angular light-scattering measurement method was used to simultaneously retrieve the various parameters of the dispersion medium,the recommend edoptimized measurement angels are(0°,40°]and[140°,180°) for forward scattering dominant and backward scattering dominant dispersion medium.Compared with the random measurement angle,the optimized selection angles can ensure the precision of inversion results.Meanwhile,reasonable retrieval results can be obtained even with 5%random measurement error.