查询词典 spectral analysis

Discrete fast Fourier transform has been widely applied to signal spectral analysis and can figure out the entire bandwidth spectrum of a signal.

离散快速傅里叶变换算法在频谱分析中得到了广泛的应用，这种算法得到的计算结果是在整个频段上的频谱信息。

The power spectral analysis of electromyographic SEA may be helpful to characterize the sensitivity or intensity of MTrP, and more even to elucidate the pathophysiology of MPS.

引痛点自发性电位活动的平均积分面积及乙醯胆碱离子通道开启时间相当适合做为量化引痛点敏感度的参数。

Open Path (line-of –sight) Gas Detection employing electro-optical "spectral finger-print" analysis of the atmosphere uses the Differential Optical Absorption Spectroscopy technique in a unique method.

用于光电一体化的"光谱指纹图"大气分析的开路式气体检测器使用了差分吸收光谱技术这种独家专利技术。

Spectral analysis of soil trace elements is based on fractional distillation of the element being detected in electric arc plasma.

本法根据被测元素在电弧等离子体中的分馏效应原理，选择合适的电极规格和内标缓冲剂，对土壤微量元素进行定量测定。

Besides, in the analytic process, it also utilizes power spectral density diagram, time frequency analysis diagram and modal stabilization diagram to assist the reach.

分析过程中并以时间历时图、功率频谱密度图、时谱图及模态稳定图来辅助观察分析。

To compare the performances of the proposed method with those of the commonly used image fusion methods, such as the usual wavelet fuser, the intensity-hue-saturation fuser, and the principal component analysis fuser, the SPOT and the landsat thematic mapper images are used to perform the experiment. The results show that the balance between spectral characteristics preservation and high spatial resolution retention can be achieved at different levels in image fusion.

使用法国地球资源探测卫星图像和陆地资源卫星专题绘图仪图像，将该方法与传统的小波变换融合法、强度色散饱和变换融合法和主成分变换法进行对比试验，结果表明，该方法可以在细节保留和光谱保持两方面达到不同程度的平衡，在合理的参量组合下，融合图像的目视效果和统计指标优于传统融合方法。

With the knowledge of linear algebra, general formula for arbitrary order Taylor finite difference has been derived. In this paper, the analysis of spectral property and computational error of arbitrary order TFD is presented in detail. Then it is applied into the numerical solution of Maxwell's equations. Stability condition and numerical dispersion relation are derived.

本文借助于采样定理，详细分析了不同阶Taylor中心差分格式的谱特性以及计算误差，并将任意阶Taylor中心差分格式用于数值求解麦克斯韦方程中，严格导出了稳定性条件和数值色散关系的表达式，引入了新的误差定义来衡量算法的好坏。

This paper proposes a cluster analysis approach based on geometric probability, which determines the classification number directly according to the distributive characteristics of pixels in the spectral space by utilizing geometric probability and gradually generates the hierarchical classification system beginning at the top level.

本文提出基于几何概率的聚类分析方法，该方法运用几何概率直接根据像元在灰度空间中的分布特征决定分类数，按照先分大类、后分小类、逐层细分的顺序确定分类方案。

Numerical weather forecasts Global spectral model Distributed and shared memory parallelization Global analysis and assimilation

数值天气预报；全球谱模式；分布共享并行；全球分析同化

Their structures were identified by physico-chemical properties and spectral analysis. RESULTS Seven compounds were isolated as kaempferol,quercetin,astragalin,isoquercitrin,kaempferol-3-O-β-D-glucuronic acid methyl ester,4-hydroxybenzonic acid,hentriacontane.

结果分离得到7个已知化合物，分别为山柰酚、槲皮素、山柰酚-3-O-β-D-吡喃葡萄糖苷、槲皮素-3-O-β-D-吡喃葡萄糖苷、山柰酚-3-O-β-D-吡喃葡萄糖醛酸甲酯、对羟基苯甲酸、三十一烷。

I want to be a big fish in a small pond.

我要做一条在小池塘里的大鱼。

While the software functioned well, we did not feel the same about their customer support!

虽然该软件运行良好，我们没有同样的感觉他们的客户支持！