傅里叶分析是将声音分解为正弦波的数学方法。
Fourier analysis is the mathematical method used to break sounds down into sine waves.
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 fractal characteristics for the Infrared Spectra have been studied by the Fourier analysis and fractal method.
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 means of Fourier analysis, a correct result is derived which fits well with the experimental results.
本文评述了葡萄叶分析营养诊断技术及其在葡萄施肥中的具体应用。
Leaf analysis technique and its application in grape fertilization were summarized in this paper.
通过比较傅里叶分析和小波分析中能量守恒公式,提出了小波能量谱的概念。
The conception of wavelet energy spectrum (WES) is posed by comparing the conservation of total energy in harmonic analysis, power spectrum analysis and wavelet transform.
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。
In this paper, a new Fourier analysis technique called the arithmetic Fourier transform (AFT) is used to compute DFT.
传统的傅里叶分析由于在时域不能局部化,难以精确检测到信号发生突变的时间。
Conventional Fourier transform can 't localize in time field, so it can' t inspect signal 's break time accurately.
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。
For example, a deep understanding of Fourier analysis or wavelet can give much different understanding of wave motion or technique of imaging.
提出了一种基于旋滤波法的干涉条纹预处理方法,并将其应用到载波傅里叶分析法中。
A new fringe-pattern preprocessing based on median spin filter is proposed to deal with the interferogram with high-level noise.
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。
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.
对这些仿真信号进行短时傅里叶分析,求出相应的最大频率、平均频率和频谱宽度等曲线。
The relative waveforms, such as maximum frequency, mean frequency and bandwidth, were obtained using the short time Fourier analysis of those simulated signals.
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。
The results show that in application to vehicle random vibration analysis, pseudo excitation method is as effective as Fourier analysis method but much simpler.
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。
The simulation results indicate that the spatial Fourier analysis is a better method to determine the MHD perturbation mode in tokamak.
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。
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.
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。
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.
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。
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.
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 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.
与较早的研究不同的是,格列格雷运用了统计学的一种方法——贝叶斯过滤分析法。
Unlike earlier studies, Gregory used a branch of statistics called Bayesian analysis.
采用数值分析与模型实验相结合的方法,对水轮机导水部件双列环列叶栅流场进行了分析研究。
The flow field of double-row annular cascades of hydraulic turbines is studied by means of digital analysis in combination with model tests.
贝叶斯网络用因果关系图的形式表达变量间相互关系,实现复杂系统的故障模式和效应分析。
Variable correlation is expressed with consequence graph in Bayesian Networks (BN), analysis of failure mode and effect of complex system is realized.
本文应用快速付立叶变换(FFT)计算分析了冲击发生器与分压器之间的相互作用对全波波头时间测量的影响。
This paper deals with the influence of impulse generating and measuring system on the measurement of lightning impulse front time by Fast Fourier Transformation (FFT).
本文将结合分步傅里叶方法和小信号分析法来求解复杂的非线性薛定谔方程(NLSE)。
This paper will use small signal analysis and split-step Fourier to solve the complex nonlinear Schrodinger equation (NLSE).
根据统计分析和贝叶斯估计结果,建议了强度等级为C20和C30再生混凝土抗压强度的标准值与标准差的取值。
Based on the results of Bayes estimations, the standard deviations for the compressive strength of RAC with strength grades of C20 and C30 were proposed.
对所有病人的术前超声测定的甲状腺叶体积及手术切口长度进行了分析。
Both ultrasonic preoperative thyroid lobe volumes and the operative incision lengths were analyzed in all patients.
先进的贝叶斯分析用于检测方程。
对其通过自由空间和付里叶变换系统特殊情况的传输作了分析和讨论。
Free space propagation and Fourier transfer system are also analyzed and discussed as particular cases.
利用傅里叶级数对其进行了频谱分析,计算了次数小于19次的各次谐波电流均方根值的频谱数据。
Using Fourier series, the frequency spectrum analysis was analyzed, and spectrum data of harmony wave less than 19 were calculated.
利用CFD软件分别对前向和后向叶轮旋涡风机的单个叶道进行流场分析,得到前向和后向叶轮单个叶道的压力性能差异。
Use CFD software, the area of flow channel for forward skewed and backward skewed impeller was analyzed, and the differences in the performance of pressure between them was got.
本文介绍了利用变形椭球体理论,对花岗岩组构(叶理、线理)进行应变分析的方法。
This paper introduces the method for a strain analysis of the fabric (foliation and lineation) of granite by using the theory of the strain ellipsoid.
本文介绍了利用变形椭球体理论,对花岗岩组构(叶理、线理)进行应变分析的方法。
This paper introduces the method for a strain analysis of the fabric (foliation and lineation) of granite by using the theory of the strain ellipsoid.
应用推荐