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矢量辐射传输方程定量描述了辐射在地表-大气耦合介质中的传输过程,是定量遥感的基础.在处理辐射和离散介质相互作用时,如何处理多次散射、辐射偏振效应和耦合地表模型是研究的重点,直接影响定量化遥感反演的精度.文中基于逐次散射近似法求解了矢量辐射传输方程,求解过程中耦合典型地表的非偏双向反射(BRDF)模型和偏振双面反射(BPDF)模型.采用相对误差因子定量分析了地表双向反射效应和大气偏振效应对天基矢量辐射的影响.为进一步研究地表-大气耦合介质系统的偏振特性及地表大气参数的定量遥感反演提供理论支持.
The vector radiation transmission equation quantitatively describes the transmission of radiation in the surface-atmosphere coupling medium and is the basis of quantitative remote sensing.How to deal with the phenomena of multiple scattering, radiation polarization and coupled ground surface model in dealing with the interaction between radiation and discrete medium Which directly affects the accuracy of quantitative remote sensing inversion.The vector radiation transfer equation is solved based on the successive scattering approximation method and the BRDF and BPDF models The relative error factor was used to quantitatively analyze the effect of the surface bi-directional reflection and the atmospheric polarization on the space-based vector radiation, which provides theoretical support for the further study on the polarization characteristics of the surface-atmosphere coupling medium system and the quantitative remote sensing inversion of the surface atmospheric parameters.