波段

First, the radiation intensity and spectral distribution of a target in the detection waveband are analyzed and simulated.

首先对目标在探测波段内的辐射强度的组成和光谱分布特点进行了分析，并对目标的辐射强度、光谱分布和运动等特征量进行了模拟。

By fusing the IKONOS multi-band and pan image using several image fusion algorithms(IHS transform, PC transform, Gram-Schmidt transform and smoothing filter-based intensity modulation) and assessing the fusion image, indicates that qualitative comparison is too subjective, although many methods are provided for assessment when using quantitative methods, more bands and more methods should be used for their limitations, spectral curve comparison was the best method for appraising the result, spectral angle and geometry distance was introduced to appraise the spectral curve.

以IKONOS影像为数据源，对IHS、PC，Gram-Schmidt和基于亮度调节的平滑滤波四种融合算法进行融合处理，对其结果进行了评价。结果表明，定性比较主观性较强，定量比较方法虽多，但大都有一定的局限性，不同谱段的计算结果总有些差异。因此，定量评价时应该多选一些波段与评价方法才能获得比较客观的评价结果。光谱曲线的比较不失为一种比较好的方法，在对光谱曲线进行比较时本文引入了光谱角度和几何距离两种方法进行定量的比较。

Brightness of aware sort is the classification norm of distance classification. Distance classification compares brightness between aware sort and unknown pixels. Angle of spectral line is the classification norm of degree classification. Degree classification compares angle of spectral line between aware sort and unknown pixels.

距离分类器是以已知地物类别的亮度值作为分类基准，通过比较未知类别像元与已知类别像元亮度值间的距离进行分类；角度分类器是以光谱谱线角为分类基准，通过比较n维波段空间中未知类别像元与已知类别像元光谱角度进行分类。

The feasibility of constructing a partial least squares model with a parsimonious calibration set for NIR spectral analysis was discussed. Waveband selection was also investigated for improving the predictive ability of the model.

通过标准样品和复杂基质样品共同构建的偏最小二乘模型，考察了波段筛选和建模参数对预测结果的影响。

Spectrally adjacent bands in a multispectral remotely sensed image are often highly correlated.

在多光谱遥感影像中，相邻光谱波段常常高度相关。

Hyperspectral imaging technology was attempted to detect rust in citrus in this study, and band ratio algorithm was proposed to overcome the adverse effects of uneven reflectance intensity due to curvature of spherical objects.

为克服柑橘表面不平整导致光线反射不均匀的影响，研究提出了波段比算法，使高光谱图像技术能够快速有效地检测柑橘果锈。

A spectral irradiance calibration unit based on parallel light is established,which is composed of a 150 W deuterium lamp ,a 1 000 W tungsten-halogen lamp and a spherical mirror.

构建了由150W大功率氘灯、1000W石英卤钨灯及球面反射镜组成的平行光光谱辐照度定标单元，解决了多数光谱辐射计由于在紫外波段响应度低、信噪比小导致的定标困难，也满足了空间遥感类光谱辐射计的辐照度定标要求。

Can be worked at each stage on each band once CW and once SSB.

可以工作在每个阶段，每个波段一次一次CW和国家统计局。

It is mainly caused by the relatively larger uncertainty（4%） in the irradiance calibration of FEL standard lamp and uncertainty（4%--6%） in the measurements of the diffuser bidirectional reflectance distribution function.

在紫外波段，使用常规手段实现高精度的辐射定标是比较困难的，这主要是由于标准灯的定标不确定度约4％和漫反射板双向反射分布函数的测量不确定度4％-6％所致。

Angiographic evidence confirming the location, and the degr ee of steno sis

心电图的变化证明其严重程及有关情况（ST 波段下公厘或以上

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐