Analysis and Correction of Atmospheric Cross Radiation for High Geometric Resolution Airborne Remote Sensing Data
高分辨率机载遥感数据的交叉辐射影响及其校正

The complexity of surface parameters can be characterized by cross radiance and BRDF in VIS/NIR band.In this paper,MODTRAN4 code and atmospheric point spread function were used for the simulation and analysis of the influences of a set of factors on cross radiance.The results show that the variance of cross radiance could be resulted from every factor,so it must be computed on the basis of measurement conditions.A new methodology is developed to eliminate cross radiance from total radiance based on modification of analytical solution of PSF and combination of it with radiation transfer code of MODTRAN.The applications to AMTIS image show a good precision.