一种大气订正的方法：BRDF──大气订正环

A New Method for Atmospheric Correction: BRDF─ Atmospheric Correction Loop

本文介绍了一种大气订正的新方法：ＢＲＤＦ──大气订正环，这种方法首先在假设地面是朗伯体的条件下进行大气订正，通过一系列在不同成象几何条件下观测值的订正结果，在ＢＲＤＦ模型库中寻找一种最能描述这些数据的模型，最后根据反演的模型参数进行基于ＢＲＤＦ的大气订正。我们设计了一系列实验，证明了这种方法的有效性和可行性。

This paper introduces a new method for atmospheric correction: BRDFAtmospheric correction Loop. Atmospheric correction was firstly performed by assuming that the groud is a Lambertian surface.By a series of corrected results of observed data Under different imaging geometric conditions,a model which can describethe most of these data was then found in the BRDF database.Finally,theatmospheric correction based on BRDF was carried out,according to the modellingparameters of the inversion. A number of experiments were designed,which haveproved the effectiveness and feasibility of this method.