Fourier的例句大全

In this paper, we introduce an automatic particle recognition approach based on Fourier descriptors from the application point of view.

本文从应用的角度出发，提出了一种基于傅立叶描述符的颗粒形状自动识别方法。

Symmetry Single-lens Fractional Fourier Transform Bologram

对称式单透镜分数傅里叶变换全息图

Doble Channel Lensless Fourier Transform Computer Generated Hologram

双通道无透镜Fourier变换计算机全息图

The Fourier describer only describes the boundary shape of the planner target region, and can not reflect feature inside characteristic.

平面目标闭合曲线的傅里叶描述子只描述了目标区域的边界形状，无法反映目标内在属性。

Moreover the mechanism of the complexing reaction was also investigated by Fourier transform infrared spectrometer ( FTIR) in the preparation process of the hybrid sol.

利用傅立叶红外（FTIR）、透射电镜（TEM）和X射线能量色散谱仪（EDS）研究了杂化溶胶形成过程中的络合机理及溶胶形态。

Applications of Green Function-Complex Conjugate Gradient Method-Fast Fourier Transform in Near-field Optics Images

格林函数共轭梯度法快速傅立叶变换在近场光学成像中的应用

Application of complex conjugate gradient method ( CCGM) and fast Fourier transform ( FFT) to study multitudinous scattering in near-field optics.

利用共轭梯度法与快速傅立叶变换（CCGM-FFT）相结合的方法来研究近场多体散射问题。

Fast Fourier Transform ( FFT), Tidal Current Harmonic Analysis ( TCHA), and Wavelet Transform ( WT) are used to analyze current observations in the continental shelf sea area.

采用快速离散傅立叶变换（FFT）、潮流调和分析以及小波（wavelet）变换等方法，分析了一个位于大陆架边缘海域定点连续观测站上的海流记录。

Fourier transform lens used in rainbow holography with convergent light illumination

会聚光中的傅立叶变换透镜用于彩虹全息

In conclusion, Fourier transform lens with convergent light illumination is more advanced than 4f system in reducing the aperture.

由此可得出，会聚光照明的傅立叶变换光路，在减小透镜口径方面优于4f系统。

Further, with the help of the convolution theorem and inverse FOURIER transform, a semi-analytical solution of the velocity response under semi-sine impulse exciting is obtained.

然后利用卷积定理和傅立叶逆变换求得瞬态半个正弦波作用下桩顶响应的振动半解析解；

L1-convergence of Fourier cosine series with coefficients of bounded variation had been researched in [ 1].

文献[1]的定理2中，研究丁有界变差系数的条件下，Fourier余弦级数的L~1收敛问题。

The flexural problems of orthotropic rectangular plate with four free edges rested on elastic foundation have been discussed in this paper and analyzed by the Fourier trigonometrical cosine series and double trigonometrical cosine series.

本文利用Fourier双三角余弦级数和单三角余弦级数，讨论和分析了弹性地基上四边自由正交各向异性矩形板的弯曲问题。

Four kinds of discrete transform principal component regression methods were established by combining wavelet packet transform, wavelet transform, Fourier transform and discrete cosine transform with principal component regression. Calculating programs were designed to perform the calculation by discrete transform principal component regression methods.

将离散小波变换、小波包变换、傅里叶变换和离散余弦变换与主组分回归方法结合构成4种离散变换主组分回归方法，编制了离散变换主组分回归方法的计算程序。

Parallel fast Fourier transform algorithm is used to calculate the Coulomb field distribution, and reduce the complexity of the algorithm. The computing speed is substantial increased.

利用并行快速傅立叶变换算法计算库仑场分布，降低算法复杂度，使计算速度大幅提高。

The films were characterized with Fourier transform infrared spectroscopy ( FTIR). The results show that c-BN films with cubic phase content being 85% were grown at a bias of 180 V in the first step lasting for 5 minutes.

傅立叶变换红外吸收光谱的结果表明：当第一步偏压为180V，时间为5min时，得到了立方相含量为85%的c-BN薄膜。

Study on Miniature Static Fourier Transform Spectrometer Used in Laser Warning Receiver

激光告警系统中小型静态傅里叶变换光谱仪的研究

This paper presents the pulse signal spectrum bandwidth using Romberg numerical integration algorithm under a certain energy wastage required. A reconstruction signal is obtained by Fourier Series, and the optimum bandwidth of the measurement system is also presented.

本文用Romberg数值积分法计算出在一定能量损耗限值要求下的脉冲信号频谱宽度，并用付氏级数对其进行了信号重构验证，据此得出了脉冲信号测试系统带宽的最佳值。

An Analytical Method for the Determination of Plastic Pigment in the Paper Base Stock by Fourier Transform Infrared Spectroscopy

采用傅立叶转换红外光谱分析法测定纸张中塑料颜料的含量

The kinetics of thiol-ene reaction is studied by Fourier Transform Infrared when benzoin dimethyl ether, benzoin ethyl ether, benzoin butyl ether, benzophenone and ITX were used as photosensitizer.

为研究硫醇烯光固化组成物的反应机理，选用安息香双甲醚、安息香乙醚、安息香正丁醚、二苯甲酮和噻吨酮为光敏剂，用红外光谱法研究了硫醇烯的光化学反应动力学。