http://www.gissky.net- GIS空间站

传统遥感定义"双向反射率分布函数"(BRDF)的概念,用以表达目标物空间反射的多角度分布特征,但其测量多偏重于单波长的微波及激光。偏振伴随多角度探测而生,蕴涵了目标物的自身特性。该文就城市常见地物——抛光的花岗岩,分别测量了其在350～2 500nm范围内的二向反射比和偏振度的波谱,分析并比较了两者波谱随探测角度的变化规律,并从定义上分析了两者的波谱关系,发现其随探测天顶角及方位角的变化规律一致,而且二向反射比和偏振度的波谱在一定程度上呈反比关系。 更多还原

【Abstract】 The Bidirectional Reflectance Distribution Function(BRDF)is used in modern optical engineering to characterize the spectral and geometrical scatter of materials,which is measured popularly on a certain wavelength in microwave band or with laser.Polarization occurs when light is reflected and scattered by surface which contains object characteristics.Bidirectional reflectance and Degree of Polarization(DOP) of polished granite were measured in the reflective solar band between 350 nm and 2 500 nm...