fourier transform的例句大全

Computer stereo vision technique can be mainly described as two images combination, Moire contouring, Fourier transform profilometry, phase measuring profilometry, active triangulation, range form focus, time of flight and spectrum project method.

计算机立体视觉技术主要有双像合成法、莫尔条纹法、傅立叶变换轮廓法、位相测量法、三角测距法、聚焦法、飞行时间法和光谱法。

Short-time Fourier transform can not take care of time resolution and frequency resolution simultaneously.

短时傅立叶变换不能同时兼顾时间分辨率和频率分辨率。

Fourier transform infrared time resolved spectroscopy

付里叶变换红外时间分辨光谱学

According to time domain sample theory and frequency domain sample theory, the figure changes from time domain to frequency domain were used to illustrate the process of DFT ( Discrete Fourier Transform) and its physical meaning.

根据时域和频域抽样定理，从时域和频域的图形变换角度证明了DFT物理意义，并结合图形推导了其定义式。

In this paper, the time domain solution is obtained by Fourier transform of frequency domain results.

本文借用频率域方法，求得浮体运动附加质量和阻尼系数关于频率ω从0到∞的变化特性，通过Fourier变换将频域解转化为时域解。

Its time-domain analysis ability that Fourier transform be not was especially suitable for time series processing.

它拥有Fourier变换所不具备的时域分析能力，特别适用于对时间序列的处理。

Lifting wavelet transform is a new wavelet transform method that can not use Fourier transform as major analysis tool. it can construct directly the wavelet in time-domain and frequency-domain.

提升小波变换是一类不依赖傅立叶变换的小波变换新方法，可以在时域或空域中直接实现小波的构造。

3-D active vision sensing technique is mainly involved in time-of-flight method, point structured light scanning, linear structured light scanning and space encoding structured light method, Moire contouring, phase measuring profilometry, Fourier transform profilometry, etc.

主动三维视觉传感技术主要有飞行时间法、点结构光扫描法、线结构光扫描法和编码面结构光法、莫尔法、相位测量轮廓术、傅里叶变换轮廓术等。

We report on the establishment of Fourier transform step-scan time-resolved photoconductivity spectroscopy to study the solar cell's minority carrier lifetime, which has close relationship with its conversion efficiency.

建立傅里叶变换步进扫描时间分辨光电导光谱，并研究太阳电池中与转换效率密切相关的少数载流子寿命。

A Method for Time-Varying Channel Parameter Estimation Based on Fractional Fourier Transform

一种基于分数阶傅立叶变换的时变信道参数估计方法

Voltage Sag Disturbance Detection Based on Short Time Fourier Transform

基于短时傅里叶变换的电压暂降扰动检测

Flow fields disturbance research of regulating valve based on short time fourier transform spectrogram

基于短时傅里叶谱的调节阀流场扰动研究

Study the suppression algorithm of chirp interference based on Short Time Fourier Transform and Fractional Fourier Transform, using time-frequency analysis theory.

利用时频分析理论，讨论了基于短时傅里叶变换和分数阶傅里叶变换的扫频干扰的抑制算法。

According to the basic theory of frequency track jamming, this paper proposes a scheme to identify and track high-speed frequency-hopping pattern based on Short Time Fourier Transform ( STFT) theory. This scheme is realized by using System On Programmable Chip ( SOPC) Technology.

本文根据频率跟踪式干扰的基本原理，提出一种基于短时傅里叶变换（STFT）的高速跳频图案的识别与跟踪方案，并采用可编程芯片系统（SOPC）技术进行了硬件实现。

In this paper, a pulsar de-dispersion algorithm based on the Short Time Fourier Transform ( STFT) is presented.

叙述了一种基于短时傅立叶变换的脉冲星消色散算法。

Firstly, we make a concrete analysis and research on the occurances of iron and titanium in mineral materials by using instrumental analysis methods such as electron paramagnetic resonance spectrometer, differential thermal analysis, X-ray powder diffraction, fourier transform infrared spectrometer, transmission electron microscopy, XRF.

我们首先利用电子顺磁共振波普仪、差热分析、X射线粉晶衍射、傅里叶红外变换光谱仪、透射电镜、XRF等仪器分析手段对矿物原料中铁、钛的赋存状态进行了具体分析与研究。

Based on a fully coupled thermal-hydraulic-mechanical formulation of saturated porous media, the analytical solutions of a one-dimensional thermal elastic consolidation model under non-isothermal condition are deduced by finite Fourier transform and its inverse transform. The analytical expressions of temperature, pore pressure and displacement are derived.

基于饱和多孔介质热-水-力完全耦合的控制方程，通过有限Fourier变换及其逆变换，对一维热弹性固结模型进行解析求解，给出土柱内部温度、孔压和位移演化过程的解析表达式。

The collection of thermal infrared emissivity spectra using a Fourier transform infrared spectroradiometer ( FTIR) is discussed and several algorithms for separating temperature and emissivity from collected target's radiance spectra data is presented.

重点讨论了利用傅里叶变换红外光谱仪野外测量地物目标光谱发射率的方法和程序，介绍了几种正确分离目标温度与发射率的方法。

The structure and properties of the products were characterized by fourier transform infrared spectroscopy ( FT-IR), thermal gravimetric analysis ( TGA), solubility test and X-ray diffraction, respectively.

通过红外光谱（FT-IR）、热重分析（TGA）、溶解性测试、X射线衍射（XRD）分析表征了产物的结构和性能。

The successful preparation of MIPs further confirmed by means of Fourier transform infrared spectroscopy, scanning electron microscopy, thermal gravimetric analysis. The results of adsorption kinetics experiment show that the adsorption amount and the adsorption rate of MIPs has better than those of NIPs.

通过傅立叶红外光谱仪、热重分析仪、SEM扫描电镜确定印迹聚合物制备成功；通过吸附动力学实验验证了MIPs较NIPs有更高的吸附量和更快的吸附速率。