Fourier transform operator

用法例句

An Improved Arithmetic Fourier Transform Algorithm Based on Spline Pre-interpolation

基于样条预插值的算术傅里叶变换的改进算法

Performance analysis of filtering algorithms based on Fourier transform;

常见傅里叶变换的滤波性能分析

Transient harmonic analysis algorithm using wavelet transform and Fourier transform;

小波变换与傅里叶变换相结合的暂态谐波分析方法

A palmprint recognition system using two-stage match method based on Fourier transform;

一种基于傅里叶变换的双级匹配掌纹识别系统

A Study on Fourier Transformation Demodulating Theory of the Gap of Optical Fiber Fabry-Perot Sensor;

光纤法布里-珀罗传感器腔长的傅里叶变换解调原理研究

A three-dimensional Fourier transformation migration method of magnetotelluric data and its application;

大地电磁资料三维傅里叶变换偏移方法及其应用

The principle for harmonic detecting and analyzing based on Fourier transformation was focused on.

重点阐述了采用傅里叶变换的方法对谐波进行检测和分析的原理,对虚拟仪器技术的特点和优点并与传统仪器分析技术进行了初步对比。

FFT-based orientation identification algorithm in fira;

基于傅里叶变换的Fira机器人朝向角辨识算法

The resulting binary image was transformed using FFT method.

用适当方法对纱线图像作二值化处理,提取表面纤维图像,并根据图像分析技术中的傅里叶变换原理,对有关像素坐标进行线性回归确定纱线捻度,与手工测试相比,用图像处理测试纱线捻度的方法是可靠、准确、快捷的。

The proposed method overcomes the shortcomings of FFT-based method such as sensitivity to noise and inaccurate performance in non-stationary environments.

针对基于傅里叶变换(FFT)的谐波分析方法易受噪声干扰和对暂态谐波处理精度差的缺点,提出了一种基于小波包变换的谐波分析算法。

In accordance with the settlement observation of the Second nanjing Yangtse River bridge Ba-gua continent s roadbed,the collocations of the observation point and technology terms of the ob-servation are gieven,the statistic analysis and the Fourier transforms are studied as well in processing the final data.

结合南京长江二桥八卦洲引线的路基沉降观测,对观测设施的布设、观测的技术要求等各项工作作了必要的介绍,采用统计方法对观测成果进行分析,以确定点位的稳定性,最后运用傅里叶变换方法分析测量数据时间序列在频率域上的变化特性,并在此基础上对可能存在的沉降规律作出分析,目的在于为工程管理部门提供决策依据,也用于指导类似工程的沉降观测工作。

The Fresnel diffraction formula and the Fourier transforms are used to get the intensity distribution formula.

采用菲涅耳衍射公式和傅里叶变换得出了输出面上的光场的理想计算公式。

An Improved Arithmetic Fourier Transform Algorithm Based on Spline Pre-interpolation

基于样条预插值的算术傅里叶变换的改进算法

Analysis on an Improved Fourier Transforms Profilometry;

改进的傅里叶变换轮廓术相位及高度算法研究

twiddle factor FFT algorithm

旋转因子快速傅里叶变换算法

reduced DFT algorithm

简化离散傅里叶变换算法

An Algorithm for Computing DCT Using Improved Arithmetic Fourier Transform

离散余弦变换的改进的算术傅立叶变换算法

Universal Calculation Formula and System Calibration Method in Fourier Transform Profilometry

傅里叶变换轮廓术中一种普适的计算公式和系统标定方法

Fourier transform infrared spectrometer

傅里叶变换红外光谱仪

Fourier transform Ramman spectroscopy

傅里叶变换拉曼光谱学

quasi fourier transform hologram

准傅里叶变换全息图

fast-Fourier-transform analyzer

快速傅里叶变换分析仪

Fourier transform AC voltammetry

傅里叶变换交流伏安法

Fourier transform nuclear magnetic resonance

傅里叶变换核磁共振

Fourier transform infrared spectroscopy

傅里叶变换红外分光镜

fourierstieltjes transform

傅里叶 斯蒂尔吉斯变换

Fourier-Bessel transform

傅里叶－贝塞耳变换

The Calculation of Light Intensity Distribution of Single Seam Diffraction by Fourier Transformation

用傅里叶变换计算单缝衍射的光强分布

Caculating DC Electric Logging Response Using Fourier Hankel Transform

用傅里叶汉克尔变换计算直流电测井响应

Simultaneous Calibration Algorithm of Phase Shifting Based on FFT

基于快速傅里叶变换的实时相移校正算法