Fourier coefficient
英
美 [ˈfʊrieɪ ˌkoʊɪˈfɪʃnt]
网络 傅里叶系数; 傅立叶系数; 里叶常数; 傅利叶系数
双语例句
- Solving time-varying periodic coefficient Riccati differential equations via Fourier series and precise integration method
基于Fourier级数的时变周期系数Riccati微分方程精细积分 - On the basis of Fourier Transformation radius series, Amplitude Centroid Coefficient ( ACC) were taken as characteristic index to distinguish cotton and viscose.
在对半径序列进行傅立叶变换的基础上，将幅度质心系数作为区分粘胶纤维和棉纤维的特征指标。 - Fourier correlation coefficient is the cosine of phase differences between two frequency or wavenumber components.
傅立叶相关系数是指2个频率成份或波数成份的相位差的余弦。 - The imperfection sensitivity coefficient and relationship between limit load and initial postbuckling coefficient as well as imperfection parameter are obtained by a two-timing perturbation technique together with Fourier expansion.
将双重尺度摄动法和Fourier展开相结合，导得了圆柱壳相应的初始后屈曲系数以及极值载荷与缺陷参数之间的定量关系。 - The diffraction properties of electromagnetic anisotropic gratings with arbitrary profile, illuminated at an arbitrary incidence angle are studied, by generalizing Fourier series expansion method of inverse rule and recursive algorithm of reflection transmission coefficient matrix.
将逆规则傅里叶级数展开法和反射透射系数阵递推算法进行推广，对任意面形及任意入射角的电磁各向异性介质光栅衍射特性进行研究。 - We use the character of Fourier transform and Inverse Fourier transform ( conjugate character) to solve the difficult problem and temporal differential coefficient, and we use the method of second order center finite difference to solve the question.
我们利用实信号的傅立叶变换和反傅立叶变换的基本性质即共轭性解决了空间偏导数的离散化问题，对于时间偏导数，我们则采用二阶中心差分的方法解决。 - Absorption factor of every time is obtained at each frequency according to stratigraphic absorption characteristic, ahd each short-time Fourier transform coefficient is weighted by using the trace number.
然后根据地层吸收特点在每一个频率上分别提取每一个时间点的吸收因子，并用其道数加权每一个短时傅里叶变换系数； - A Comment on the Deduction of Fourier Coefficient Formula
傅里叶系数公式推导的一个注记 - The Mobius inversion formula can be used to compute the Fourier coefficient.
Mobius反演公式可以应用于计算傅立叶系数。 - 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 dynamic phasor theory, which is based on time-varying Fourier coefficient series, is applied to modeling and simulation of power electronic devices.
把动态相量理论推广应用到了电力电子装置建模及仿真中。 - An expansion of| u| u in Fourier series and the drag coefficient c_p in the Bohai Sea
∣U∣U的Fourier展开和渤海海底拖曳系数CD - Fourier coefficient model and its polynomial approximation in analysis of BJT circuits
BJT电路分析的FOURIER系数模型及多项式近似 - The control input rule is expressed by Fourier orthonormal basis and coefficient vector. Based on the optimal motion planning, the particle swarm optimization algorithm is proposed for free floating space manipulators.
在运动规划中，引入Fourier基函数构成系统控制输入，对基函数的系数向量优化，提出一种应用粒子群优化的最优运动规划数值算法。 - The internal relation between viscosity and thermal conductivity coefficient has been revealed based on Fourier thermal conductivity law and Newton viscosity law. The transport characteristic of viscous is pointed out according to exchanging-coupling theory and its application to industrial control is discussed.
本文从Fourier热传导定律和Newton阻滞定律出发，阐明粘滞系数与热传导系数的内在联系，并用交换耦合理论指明粘滞系数的输运特性及其在工程上的应用。 - Pole embrace coefficient which influences cogging force is analyzed by Fourier Series. The method of impairing cogging force, from the aspect of choosing proper pole embrace coefficient, is educed by analyzing effect of pole embrace coefficient to fourier decomposition coefficient.
运用傅立叶级数对影响齿槽定位力的极弧系数进行分析，通过极弧系数对傅立叶分解系数的影响分析，得出合理选择极弧系数消弱齿槽定位力的方法。 - In this paper, Fourier extended method of inverse rule and recurrent algorithm of the reflection transmission coefficient matrix ( RTCM) are extended in electromagnetic anisotropic medium gratings.
本文把逆规则傅立叶展开法和反射透射系数阵（PTCM）递推算法推广到电磁各向异性介质光栅中。 - Sing Fourier Integral and δ-function an analysis of unsteady heat conduction for semi-infinite body is given in detail, assuming that the coefficient of convective heat transfer on the boundary surface between solid body and fluid is definite or infinite.
在物体壁面与流体间的换热系数为有限值或无限大情况下，用傅里叶积分和δ函数对半无限大物体非稳态导热作了全面分析。 - In the discrete Fourier domain, the watermark information is embedded by quantifying the amplitude of the DFT domain coefficient; hi the same time, the quantification procession and the provision that must be met in the modifying of amplitude is given.
在离散傅立叶变换域，通过对变换域系数的幅值进行量化来嵌入水印信息，给出了量化方案和修改幅度应满足的条件； - The methods to prove the termwise derivation and calculate the Fourier coefficient
证明逐项求导公式和计算傅立叶系数的方法 - Through analysis of relation between boundary motion and variance of Fourier transform coefficient, Motion detection of planar closed boundary using Fourier descriptors and Hough transform is proposed in the paper. computer simulation results show that the methods is feasible and effective.
文章分析了平面封闭边界运动和傅里叶描述系数的变化关系，提出了基于边界傅里叶描述子和Hough变换检测平面封闭边界的运动，并通过计算机仿真证明该方法的可行性。 - According to the Fourier thermal conductivity theory for infinite plate, the authors design a tabulate thermal conductivity coefficient surveying instrument.
作者依据无限大平板导热理论的傅立叶导热定律设计了平板式导热系数测定仪。 - Then considering configuration of the time domain IP measure and the Fourier coefficient of the excitation pulse, calculate various response of the frequence domain.
然后结合时间域激电测量方案，及激发脉冲的频谱系数，计算频率域的各种响应参数，如频散率、频导电率、频激电率。 - Parameter Estimation by Fourier Analysis& Determination of Gas-Particle Heat Transfer Coefficient in Packed Bed
应用傅立叶解析的参数估值法&固定床流体与颗粒间给热系数的测定 - The symmetric function, the anti-symmetric function and their Fourier coefficient
对称函数、反对称函数及其富里哀系数 - According to the low resolution of significantly time-varying signal analyzed by conventional STFT ( Short Time Fourier Transform), this paper introduces an improved algorithm that considers coefficient of frequency modulation into window function.
针对传统短时傅里叶变换（STFT）对时变显著信号分辨率不高的缺点，提出了一种对窗函数加调频系数的改进算法，用VC程序予以实现； - Rational selection Fourier coefficient and order while abstracting the vertical deformation information
提取垂直形变信息时富氏系数及其阶数的合理选取 - The stability is analyzed using the dynamic stability method. The hydrodynamic loads are calculated with the Fourier coefficient model method. Monte Carlo simulation is used to estimate the reliability of stability with approximation model.
采用动力稳定性分析方法分析管线的稳定性，水动力载荷采用Fourier系数模型方法计算，基于近似模型技术利用MonteCarlo仿真对稳定性进行可靠度评估。 - A nonlinear unsteady indicial response model of aerodynamic coefficient could be approximated by the use of Fourier analysis function at high angle of attack.
运用Fourier函数分析法逼近大攻角非定常气动力阶跃响应模型。