Fourier analysis method is proposed for analyzing the discontinuous time series of pressure.
提出了一种用于对不连续压力采样序列的傅立叶分析方法。
The results show that in application to vehicle random vibration analysis, pseudo excitation method is as effective as Fourier analysis method but much simpler.
结果表明,虚拟激励法在汽车随机振动分析中的应用和傅里叶分析方法同样有效,却简单得多。
These analysis method in fault diagnosis process can play an important role, but Fourier analysis method is only suitable for analysis of the continuous, the steady time signal.
这些分析方法在故障诊断过程中起到了重要的作用,但傅立叶分析方法只适合于分析连续的、平稳的时域信号。
With the introduction of carrier fringes in digital holographic interferometry, Fourier analysis method was used to analyze interference patterns and calculate their dynamic changes conveniently.
由于在全息干涉测量中引入载波条纹,所以能够方便地应用傅里叶分析方法分析计算干涉条纹的动态变化。
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。
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。
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。
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 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。
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。
Fourier descriptor is an important method used in shape analysis and recognition.
傅立叶描述子是分析和识别物体形状的重要方法之一。
Fourier analysis is the mathematical method used to break sounds down into sine waves.
傅里叶分析是将声音分解为正弦波的数学方法。
This paper puts forward an analysis method of rotor harmonic leakage reactance in consideration of conductor effective width in slots, ie, Fourier analysis.
本文提出了一种考虑槽导体有效宽度时转子谐波漏抗的分析方法,即傅立叶变换分析法。
The method is compared to the traditional FFT(Fast Fourier Transformation)analysis. The feasibility of analyzing the engineering measure data using wavelet transformation is discussed in this paper.
并将该方法与传统快速傅立叶变换分析结果进行比较,探讨了使用小波变换对工程实测数据进行分析的可行性。
In this paper, main problems that face the Fourier spectrum analysis method and parameter model spectrum analysis method are described from the viewpoint of engineering application.
本文从工程应用的角度叙述了以付里叶变换为基础的谱分析方法和参数模型谱分析方法所面临的主要问题。
Compared with other spectra analysis, such as Fourier entropy and periodic picture, this method has many advantages such as no limit to sampling length and higher resolution to the spectra.
与其它谱分析方法(如傅立叶谱和周期图法)比较,最大熵谱分析方法具有不受取样长度限制、对频谱分辨率较高等优点。
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 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。
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。
In this paper, we apply the Fourier transform method (FTM) of the phase analysis method to double-exposure holographic interferometry and propose double-exposure digital holographic interferometry.
本文将相位分析技术中的傅立叶变换法(FTM)引入二次曝光全息干涉计量中,提出了二次曝光数字全息干涉术。
The fractal characteristics for the Infrared Spectra have been studied by the Fourier analysis and fractal method.
红外光谱可作为一种信号的功率谱,用富里叶分析来研究。
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。
Differing from the traditional theories of stock market cycle, we used the Fourier spectrum analysis method to forecast the cycle.
不同于传统股市周期理论,本文使用傅里叶谱分析技术来模拟预报股市周期。
Studies in this article show that if the displacement of target cloud is less than two pixels, Fourier analysis technique is an appropriate method of computing CMW.
本文研究表明,对于给定的导风云图序列,如果示踪云在给定时间间隔内的位移小于两个像距,适用傅立叶相位分析法计算云迹风;
At present, the most widely used fault signal analysis and processing method is Fourier analysis and Fourier corresponding FFT fast algorithm.
目前,应用最广泛的故障信号分析处理方法是傅立叶(Fourier)分析和相应的FFT快速算法。
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。
Fourier Transform, the most classical signal processing analysis method, is ideal for the calculation of magnitude of sinusoidal signals in their steady state.
作为最经典的信号处理手段的傅立叶分析,对被分析信号的幅值变化相当的敏感。
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。
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。
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。
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