Fourier的例句大全

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

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

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。

By Fourier series expansion of lightning current waveform in time-varying field, analytical formulations in frequency domain are derived.

通过对时变场中瞬态的雷电流波形进行傅里叶级数展开和周期延拓，得到了频域中的雷电电磁场的解析公式。

On the Characterization of the Fourier Spectra of Functions Defined on an Abelian Group

阿贝尔群上函数的傅里叶谱特征

Analysis of general nature of intermodulation products based on Fourier series method

基于傅立叶级数法的互调产物一般特性分析

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。

Period characteristics of radiated noise at high frequency is investigated by a method based on short time Fast Fourier Transformation, and propeller speed is estimated.

用短时傅立叶分析的方法研究了辐射噪声在高频段时频变化的周期性，估计了目标的螺旋桨转速。

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。

The properties of the product were characterized by thermogravimetry-differential thermal analysis, X-ray diffraction and Fourier infrared transmission spectroscopy.

用差热-热重分析、X射线衍射、红外光谱等手段对样品进行表征。

The characterizations were performed by differential thermal analysis, X-ray diffraction, Fourier transmission infrared spectroscopy, scanning electron microscopy and UV-Vis-NIR scanning spectrophotometer.

采用差热分析（DTA）、X射线衍射（XRD）、扫描电镜（SEM）、傅里叶红外光谱FT-IR和UV-Vis-NIR分光光度计对材料进行表征。

The effects of different nucleating agents on the crystallization behavior and the properties of Li_2O-ZnO-SiO_2 glasses were investigated by means of differential thermal analysis, X-ray diffractometry, Fourier infrared absorption spectrometry and scanning electron microscopy.

采用差热分析、X射线衍射及傅里叶红外吸收光谱等测试手段，分析不同晶核剂对Li2O-ZnO-SiO2系统玻璃析晶行为和性能的影响。

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。

Thermal blooming in atmospheric laser propagation is studied using Fast Fourier Transformation.

采用快速傅里叶变换，研究了激光在大气传输中的热晕现象。