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中文摘要：
实验测量了土壤在400～720nm内的光谱二向反射分布函数（BRDF），并分析了偏振BRDF强度分量与实验观测角及波长的关系。由于Hapke模型能很好地描述入射辐射与地物之间的相互作用过程．利用Hapke二向反射模型实现土壤在可见光波段的BRDF强度分量建模。通过比较模型预测值与实验观测值可以看出，所采用的强度模型能准确地描述土壤的．‰特性，并能达到较好的精度要求，因此，可以根据所建立的模型来分析土壤模型参数变化趋势，在一定条件下反映出土壤本身的部分特性。同时，分析了土壤偏振度与探测角、波长及土壤强度分量的关系，对土壤偏振性质的研究具有一定的理论意义。
英文摘要：
In the experiment, spectral reflectance was measured in the visible band （400-720 distribution function （spectral polarimetric BRDF） of soil nm） and the relationship between variation of spectral polarimetric BRDF（pBRDF） with observing angle and wavelength was analyzed. As the Hapke model can well describe the interaction between incident radiation and surface features, the Hapke reflectance model was used to complete modeling of BRDF intensity component for soil in the visible band. By comparing predicted value with measured value, it is known that the intensity model used in this paper can describe the characteristics of the soil with great accuracy, so it is possible to analyze the trend of soil model parameters according to the established model. Under certain conditions, it may reflect some characteristics of the soil itself. The relationships between the degree of polarization and detection angle, wavelength and intensity component for soil were also analyzed, and it has theoretical significance for the study of polarization properties of the soil.
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