A novel method about two dimension Fourier frequency analysis is proposed in order to obtain high radial rotate precision.
为了改善高速磁浮主轴的径向回转精度，该文提出了二维傅里叶频率分析的新方法。
Conclusions: X ray diffraction Fourier pattern analysis is a feasible method for the identification of Compound Chinese traditional medicine preparation.
结论：X衍射分析法是鉴定与识别中药复方制剂一种可行方法。
In chapter two, a new method which combines Fourier transform smoothing with ratio spectra derivative has been developed for analysis of binary or ternary mixtures.
在第二章中，针对两组分和三组分混合体系分析问题提出了傅立叶变换平滑比光谱导数的新方法。
The process of reconstructing a function of time or space from its sinusoidal components determined in Fourier analysis.
根据其正弦型分量用傅立叶分析方法重建一个时间或空间函数的过程。
Discrete fast Fourier transform (FFT) 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。
In the field of signal analysis, the DFT (Discrete Fourier Transform) is a well known term.
在信号分析领域，DFT(离散傅立叶变换)是一个常见术语。
Fourier translation, as a traditional method of signal analysis and processing, has essential effect and bring far_-reaching impact on mathematics and engineering application.
傅立叶变换作为一种传统的信号分析和处理方法，已在数学和工程应用中发挥了重要的作用和产生了深远的影响。
For synthetic aperture digital lensless Fourier transform hologram, a screen-division reconstruction method is proposed based on theoretical analysis.
针对合成孔径数字无透镜傅里叶变换全息图，在理论分析的基础上，提出了相应的分幅再现算法。
It can be taken as a kind of discrete signal and do spectrum analysis by discrete Fourier transform.
在计算生物学中，常采用离散傅立叶变换进行频谱分析。
By use of the angular-spectrum analysis and the Fourier transform method, a correction method is obtained to describe the propagation of few-cycle pulsed beam with constant beam waist.
利用角谱分析和傅里叶变换的方法，得到一种描述几个周期的等束腰宽度脉冲光束传输的脉冲修正方法。
The standard method for spectrum analysis in digital signal processing is the discrete Fourier transform(DFT), typically implemented using a fast Fourier transform(FFT) algorithm.
数字信号处理中标准的频谱分析方法是离散傅立叶变换（DFT），典型的实现方法是快速傅立叶变换（FFT）。
In this paper, a new Fourier analysis technique called the arithmetic Fourier transform (AFT) is used to compute DFT.
本文采用一种新的傅里叶分析技术—算术傅里叶变换(aft)来计算dft。
Unlike the sinusoidal, endlessly repeating waves used in Fourier analysis, wavelets are often irregular and asymmetric, with values that die out to zero as they move farther from a central point.
与傅里叶分析中使用的无限重复的正弦波不同，小波常常是不规则的和非对称的，随着离中心点越来越远，其数值逐渐靠近零。
In the theory of the system, the tools of Fourier analysis or Fourier transform enable us to analyze the response of a LTI system, such as a circuit, to such sinusoidal inputs.
在系统理论中，付里叶分析与付里叶变换的工具使我们能够对一个线性时不变系统在正弦激励下的响应进行分析，比如一个电路对正弦输入下的响应。
In our new method, an earthquake‐like sound is generated by modifying the frequency information of a generating function based on the symmetric Fourier analysis theory.
这种类似地震的声音是通过修改基于对称傅里叶分析理论生成函数频率信息而生成的。
The simulation results indicate that the spatial Fourier analysis is a better method to determine the MHD perturbation mode in tokamak.
比较结果表明，用空间傅里叶分析法识别托卡马克中的MHD扰动模式是一种可以行之有效的方法。
By means of Fourier analysis, a correct result is derived which fits well with the experimental results.
并用傅里叶分析的方法导出正确的结论，且与实验现象完全符合。
By a simple Fourier analysis, this paper introduces how to design a direct torque controller according to fuzzy logic control principle.
用傅立叶分析，把变频调速原理引入直接转矩控制中，并在此思想指导下设计了模糊速度控制器，大大简化了系统设计和计算。
For example, a deep understanding of Fourier analysis or wavelet can give much different understanding of wave motion or technique of imaging.
举例而言，对付立叶分析的理解越深入，我们就更能理解波的运动及图像的技巧。
Aiming at the above circumstances, this article introduces a new analysis and derivation method of Fourier transform.
针对这一情况，本文介绍一种新的傅里叶变换的分析和推导方法。
Based on Fourier transform, short time Fourier transform and Wavelet transform, a realizing method of system software module of Virtual signal analysis instrument is proposed.
基于傅立叶变换、短时傅立叶变换和小波变换，提出了一种虚拟信号分析仪的系统软件模块的实现方法。
Real time Fourier analysis is introduced on the basis of traditional Fourier analysis. APF USES a slippage iterative calculation method to suit DSP control system.
在传统傅里叶分析的基础上，给出了一种实时傅里叶分析的方法，并针对DSP控制系统，运用了滑窗迭代的计算方法。
The Fourier analysis method is applied to decompose the air-gap magnetic density into the basic wave and a series of harmonic and wave shape eigen coefficient of air-gap magnetic field are calculated.
采用付立叶谐波分析的方法把气隙磁密分解为空间基波和一系列谐波，进而计算出气隙磁场波形特征系数。
The Fourier spectral analysis method is applied to the input-output coupling problem of a prism-thin film waveguide system. The input-output coupling equations are solved fast and exactly.
把傅里叶频谱分析方法引入棱镜-薄膜波导耦合系统的输入输出耦合问题，快速而完整地求解了系统输入输出耦合方程组。
The stationary phase approximation is a basic principle of a special class of asymptotic fourier analysis, such as oscillatory integrals.
稳定态逼近是渐进分析中常用的一种方法。
The frequency-domain analysis is accomplished by fast-Fourier transform analysis(FFTA)procedures and tested with a computergenerated mathematical model.
频域分析借助于快速富里叶变换分析（FFTA）过程，并用由计算机生成的数学模型进行测试。
This paper proposes a new Fourier shape descriptor integrated with Principal Component Analysis (PCA) and the Farthest Point Distance (FPD).
提出一种将主成分分析(PCA)与最远点距离(FPD)相结合的二维形状傅里叶描述子。
Based on the modulation theory and the Fourier analysis of switch function, the mechanism of interhamonics in source side is analyzed with an example of CSI and a simple model is established.
为了提高网络化制造中企业间业务流程组合的灵活性及重用性，提出了一种业务流程重用组合机制，利用协调理论构建了重用组合机制功能结构，并结合面向方面技术建立了该机制的实现方法。
Based on the modulation theory and the Fourier analysis of switch function, the mechanism of interhamonics in source side is analyzed with an example of CSI and a simple model is established.
为了提高网络化制造中企业间业务流程组合的灵活性及重用性，提出了一种业务流程重用组合机制，利用协调理论构建了重用组合机制功能结构，并结合面向方面技术建立了该机制的实现方法。
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