利用标量辐射传输理论，计算了云层对光波的反射与透射，给出了云层的平面反照率和双向反射函数；
The scattering and reflection of light by clouds are studied by scalar radiative transfer theory. The plane albedos and bidirectional reflectance of clouds are given.
介绍了双向反射分布函数（BRDF）的概念及其测量原理。
The concept and the measuring theory of BRDF (bi-directional reflectance distribution function ) were discussed .
双向反射分布函数(BRDF)有效地描述了材料表面的空间反射特性和光谱特性。
The spatial reflected characteristic and spectral characteristic from optical material surfaces were effectively described by the BRDF (Bi-directional Reflectance Distribution Function).
本文介绍了双向反射分布函数(BRDF)的概念和测量方法。
The concept and measuring method of BRDF (Bi-directional Reflectance Distribution Function) are discussed in the paper.
为了研究目标表面的激光散射特性可以利用双向反射分布函数的方法。
Bidirectional reflectance distribution function (BRDF) can be used to study the laser scattering properties of target surface.
该方法利用半球谐基函数对入射光线正交化，利用两个半球上的笛卡儿积来定义物体表面的双向反射率分布函数。
This method USES the hemispherical harmonics basis to represent incoming radiance and USES the Cartesian product of two hemispheres to define the BRDFs.
选择了合适的测量方式，建立了铝漫反射板的相对双向反射向反射分布函数的测量装置。
The experimental setup for the measurement of aluminium diffuser's bidirectional reflectance distribution function has been established by choosing a proper illuminating and viewing method.
利用双向反射分布函数测量系统，通过对物体表面双向反射分布的测量来获得其方向发射率。
The directional emissivity is deduced from the Bidirectional Reflectance Distribution Function (BRDF) in the hemispherical scattering space of the objects.
根据粗糙面电磁散射理论讨论了粗糙表面双向反射分布函数（BRDF）和单位面积激光雷达截面的关系。
The relationship between Bidirectional Reflectance Distribution Function (BRDF) and Laser Rader Cross Section (LRCS) is introduced by means of the electromagnetic radiation and scattering theories.
以锡纸与陶瓷材料为例，进行了双向反射分布函数的绝对测量实验，两种材料表现了很强的镜反射特性。
Absolute measurements of BRDF on tinfoil and ceramic tile are performed and the test materials present apparent specular reflection characteristics.
对高光本色油漆的膜层结构提出简化假定，通过物理、光学分析，导出其双向光谱反射率函数，得到了一种新的光照模型；
Based on simplified assumptions on solid paints film structure, a new bidirectional reflectivity function is obtained through physics and optical analysis;
测量结果表明，双向反射分布函数的测量精度取决于测量平台的精度、探测设备的灵敏度以及照明光源的稳定性。
The BRDF measurement results are closely related to the precision of measurement platform, the sensitivity of measurement instrument, and the stability of illuminating light source.
偏振双向反射分布函数（BRDF）不仅可以表示物体散射光辐强度的空间分布情况，还包含了丰富的偏振信息。
Polarization BRDF can be used to describe the space distribution of radiation intensity of objects and it includes plenty of polarization information.
偏振双向反射分布函数（BRDF）不仅可以表示物体散射光辐强度的空间分布情况，还包含了丰富的偏振信息。
Polarization BRDF can be used to describe the space distribution of radiation intensity of objects and it includes plenty of polarization information.
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