查询词典 spectral analysis

In order to use IR radiation characteristics for separating targets from decoys this paper obtains their spectral radiant flux first by way of theoretical calculation. This part of the paper makes progress as follows: 1 Spectral radiant flux of three kinds of simple or complex targets and their corresponding decoys can be calculated.

本文针对大气层外目标及其伴飞诱饵的识别问题，主要进行了下面三个方面的工作：一、目标及其诱饵的红外辐射特性的理论计算为了把红外辐射特性用于区分目标和诱饵，首先必须获取它们的红外辐射特性。

This source have the advantages of high stability, high spectral radiant flux, narrow bandpass, large area, tunable wavelength in broad spectral range, etc.

这种新型的积分球光源具有稳定性好、光谱辐通量高、光谱带宽窄、光源面积大、波长在宽波段内可调谐等优点，联合响应度直接溯源于初级辐射标准低温辐射计的标准探测器，可以有效降低定标不确定度。

It is shown that there is a slight difference between the power law power spectral-CDM model and running spectral index-CDM model at lower redshifts.

结果表明，PL-CDM和RSI-CDM宇宙学模型在低红移处有微小差别。

Nevertheless, with the increasing of maximum number of retransmissions, the gain in spectral efficiency decreases, which suggest that enough spectral efficiency gain can be gotten by a desirable delay in practical systems.

但随着最大重传次数的增加频谱利用率的提高越来越小，这就使得实际系统能以较小的时延代价换取足够的频谱利用率增益。

To avoid the shortcoming of magnification change with wavelength, which will cause the spectral image pixel registration error and provide inaccurate relative spectral signal strength in the classical diffractive optic imaging spectrometer, a novel hybrid refraction/diffraction telecentric optical system combining a diffractive lens with an achromatic lens system is presented, and the working principle is then established.

为了克服在传统衍射光学成像光谱仪中，衍射透镜的焦距随波长变化引起系统放大率随波长变化，从而导致光谱图像的像元配准误差，得到并不精确的相对光谱信号强度，提出了将衍射透镜与消色差透镜系统相结合的新型折/衍混合、二组元复合远心成像光学系统的技术方案，具体分析推导了该系统的成像理论。

This paper analysis the interaction inside of two-electron atomic system by using Bohr Theory and the method of theoretical analysis, and presents a quantitative analysis, and discusses the feature and characteristic of energy level and spectral about two-electron atomic, based on the experimental data offered by China Basic Science Data Center.

运用玻尔理论，通过理论分析的方法，分析双电子原子体系内部间的相互作用，并根据中国基础科学数据中心提供的实验数据对双电子能级和跃迁的光谱作了定量计算，讨论分析了双电子原子能级和光谱的性质和特点。

Using modal and spectral analysis in ANSYS＇ dynamic analysis, earthquake resistance analysis has been performed on 3D model of steel platform of air-cooling island in thermal power plant.

利用ANSYS软件动力分析功能中的模态分析和谱分析功能对火电厂空冷岛钢结构平台的三维模型进行地震波作用下的抗震分析。

In the gas-liquid phase reaction of catalytic oxidation of mesitylene by air to synthesize trimesic acid and the related process,an analysis method of reaction components was proposed,which includes chromatographic analysis,mass spectral analysis,IR spectrum,atomic absorption spectrophotometer and chemical titration for the purpose of analyzing reaction groups.

针对均三甲苯气液相催化空气氧化合成均苯三甲酸的反应及相关的工艺过程中，反应产物均苯三甲酸的分析问题，提出以色谱分析、质谱分析、红外光谱分析、原子吸收光谱分析及化学滴定为主要分析手段对反应组分进行分析，重点研究并建立了相关的分析方法。

Audio waveform statistical characteristics: base on high order spectral analysis methods, detect forgeries using bispectral analysis. Use matlab for experiments and perform analysis on the result.

音频波形统计特征方面：从高阶频谱分析理论出发，研究了高阶频谱分析的检测方法，并利用三阶频谱篡改检测使用matlab工具进行实验并分析实验结果，最后对整个方法进行分析以及思考。

Secondly, according to the spectral correlation theory of second order cyclostationary processes, maximumlikelihood filters are used to estimate the cyclic spectra. By estimating the crossspectra of the two frequency shifted versions of cyclostationary signal, the cyclic spectra can be obtained. The analysis effective bandwidth of maximumlikelihood filters is studied in details. In case of cross-spectra estimation, the analysis effective bandwidth of maximum-likelihood filters is not correct. A new method to calculate the analysis effective bandwidth is presented.

第二，根据二阶周期平稳随机信号的谱相关理论，提出了循环谱密度估计的最大似然滤波器法，即采用最大似然滤波器估计出周期平稳信号的两个频移分量之间的互谱密度，从而得到了循环谱密度的估计；对最大似然滤波器的有效分析带宽做了详细的分析，指出了在互谱密度估计时以往的有效分析带宽不正确，并提出了互谱密度估计时的有效分析带宽的新的计算方法。

"Yes, now you can give yourself airs," she said, you have got what you wanted.

"对了，您现在高兴了，"她说道，这是您所期待的。

Then the LORD said to me: Rebel Israel is inwardly more just than traitorous Judah.

上主于是对我说：＂失节的以色列比失信的犹大，更显得正义。