测定叶片光谱反射率和微分光谱。
Spectral reflectance from leaves and the differential spectrum were measured.
在光谱反射率曲线的微分图上显示出蓝移。
The differential curve of spectral reflectance assumes a hypsochromic shift.
利用手持式光谱仪测定了褐飞虱为害后稻株的光谱反射率。
The reflectance of rice plant damaged by the brown planthopper(BPH, Nilaparvata lugens) was measured using an ASD handheld spectroradiometer.
随着种植密度的提高，光谱反射率在可见光波段降低，近红外波段增加。
The reflection rates of spectra of the canopy decreased in the near infrared waves and increased in the visible waves with increasing the plant densities.
一些对颜色重现要求较高的应用领域需要获取目标表面上各点的光谱反射率。
In some high_precision color reproduction applications, there is a need to obtain spectral reflectance of each point on the objects surface.
结果表明，光谱指数与覆盖度的相关性远远高于光谱反射率与覆盖度的相关性。
The results showed that spectral indices have much higher correlation coefficients with fractional cover than does spectral reflectance.
冠层光谱反射率随发育期推移在可见光范围内逐渐增大，在近红外区域逐渐降低；
The canopy spectral reflectance were gradually getting larger in the visible region and smaller in the near infrared region as the growth stage went on.
提出一种利用MODIS图像，用查找表反演海岸与海岛地物光谱反射率的方法。
The paper describes a LUT method for retrieval of the ground surface reflectance along coast zone and island with MODIS image.
大多数天然物质表面的光谱反射率曲线比较平滑，可视为几个基向量的线性组合。
Since the vast majority of reflectance spectra for surfaces are smooth functions, each reflectance spectrum can be represented as the weighted sum of basis functions.
在基于光谱反射率还原的颜色校正方法中，有限维模型是光谱反射率降维的有效方法。
In spectral reflectance reproduction based color correction, the finite dimension model can be employed to condense spectral reflectance.
经包络线去除后的土壤光谱反射率归一化到0～1.0之间，可快速有效地突出土壤光谱曲线吸收和反射特性。
After the continuum-removal, the reflectance is normalized to a range of 0-1.0. This enhances the soil absorption and reflection spectrum.
根据1981年10月7—15日在舟山朱家尖东清西滩实测的地物光谱反射率资料，求平均反射率和均方差。
Based on ground spectral reflectance data obtained at the west bank of Dongqing, Zhujiajian, Zhoushan Island in October 7-15, 1981, the mean-reflectance and mean-square-error were calculated.
对玻璃基底和金属基底的铝反射膜在紫外、低能电子、低能质子的综合环境作用下的光谱反射率退化进行了实验研究。
The study of the spectral reflectance degradation of Al reflective film with glass and metal substrate in space combined environment was carried out.
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;
通过分析水稻叶片氮含量与冠层光谱反射率及植被指数之间的相关性和定量关系，测试并评价便携式作物氮素监测仪的工作性能。
The correlations and the quantitative relationships between LNC and rice canopy reflectance spectra were analyzed, and the performance of portable nitrogen monitoring instrument was evaluated.
根据大量观测数据建立了叶片含水量与吸收深度及吸收面积间的线性回归方程序，从而提出一种利用光谱反射率诊断小麦叶片水分状况的方法。
The linear regression model between the water content of the wheat leaves and the absorption depth or area of the spectrum were obtained on the basis o...
由分析得到，对于确定的光源光谱宽度，波导端面反射率只有取合适的值，才能取得最灵敏的调制效果。
By analysis it is shown that the maximal modulation sensitivity comes from an appropriate end reflection coefficients of OWFPM for a certain light source spectrum width.
最后根据实测在不同反射率下外腔激光器的激射光谱，发现理论分析结果和实验数据是吻合的。
The output spectrum of FBG-ECL in different peak reflectivity was practically measured. The result of experiment is accordant with theoretical analysis' conclusion.
实验结果表明，基于光谱多边形的方法能够更有效地综合应用反射率和波长二维信息，有效度量光谱向量相似性。
It proved that the approach based on spectral polygon can be used to similarity measure and image retrieval effectively because of its synthetic applications to albedo and wavelength information.
并采用了平场域法、利用太阳辐射光谱两种方法对图像进行反射率反演，将辐亮度值反演为绝对反射率值。
Both the Flat-Field method and the method which utilize the solar radiation spectrum are used on reflectance, inversion in order to transform radiant brightness image into reflectance, image.
第三步利用MODIS的通道响应函数，把查找表光谱数据变换成MODIS波段反射率。
The third step is changing the look-up table data into MODIS spectral data using MODIS channel response function.
第三步利用MODIS的通道响应函数，把查找表光谱数据变换成MODIS波段反射率。
The third step is changing the look-up table data into MODIS spectral data using MODIS channel response function.
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