Feature extraction arithmetic researching based on Fourier analysis in optical correlation recognition;
光学相关识别中基于傅里叶分析的特征提取算法研究
Determination of MHD mode with spatial Fourier analysis;
空间傅里叶分析法识别MHD扰动模式
Wavelet analysis develops from Fourier analysis.
小波分析是傅里叶分析的发展与延拓。
Fault diagnosis of power electronic circuits with discrete fourier transform;
用傅里叶分析法诊断电力电子电路的故障
On the base of Fourier transform method, the quantum actions between light and the periodic structure in time and space are discussed.
讨论了空间周期结构（如光栅、晶格等）和时间周期性对光波和物质波的作用，即动量和能量的量子化变化，并用傅里叶分析和相对论的方法对其进行了分析论证，提出了一种对于运动和物体相互作用在概念上的处理方法。
In order to determine the appropriate time window width and center of short-time Fourier analysis(STFT),a method combining STFT and mathematical morphology is presented to analyze the components of a transient signal.
为了提取恰当的短时傅里叶分析(STFT)时间窗宽度和中心,进而利用STFT分析暂态信号成分,提出了基于数学形态学的STFT方法。
In view of the cross-term signals of time-frequency distribution,a brief survey is given about the ways and characteristics of short-time Fourier analysis,Wigner-Vill distribution and some other evolved time-frequency distributions and its reset principles.
针对时频分布的交叉干涉项信号简述了短时傅里叶分析、Winger-Vill分布和由其演化的几种时频分布方法、特点以及时频分布的重排原理。
fourier analysis of crystal structure
晶体结构傅里叶分析法
The data is calculated by using the wavelet transformation and Fourier transformation.
利用小波分析和傅里叶分析方法对资料进行处理，分析结果表明。
Simple Method to Study the Fourier Transform of Object
研究物体分数傅里叶变换的简单方法
fast-Fourier-transform analyzer
快速傅里叶变换分析仪
Analysis for Transmission Characteristics of Ridged Waveguides with Complicated Structure by Using Fourier s Expansion-Differential Method;
用傅立叶展开—差分法分析复杂结构脊波导的传输特性
Fourier analysis is the mathematical method used to break sounds down into sine waves.
傅里叶分析是将声音分解为正弦波的数学方法。
Numerical analysis of laminated ceramic composites by non-Fourier heat conduction
非傅立叶模型层状复合陶瓷结构热传导分析
FT-IR Analysis of Expanded Feather Meal
傅立叶红外光谱仪分析膨化羽毛粉的结构变化
FOURIER SPECTRAL ANALYSIS FOR PRISM-THIN FILM WAVEGUIDE COUPLING
棱镜-薄膜波导耦合的傅里叶频谱分析方法
A Spectrum Analysis Method Based on FBF Neural Network
一种基于傅里叶基神经网络的频谱分析方法
Study on Analysis of Copy Paper by Fourier Transform Infrared Spectroscopy
傅里叶变换红外光谱法分析复印纸的研究
Advance of Reaserch on Edible Oil Quantitative Analysis Using FTIR Spectroscopy
傅里叶红外光谱法油脂定量分析研究进展
FTIR Spectra-Principal Component Analysis of Erigeron breviscapus and Erigeron multiradiatus from Different Areas
傅里叶变换红外光谱法并结合主成分分析法鉴别灯盏花和多舌飞蓬的研究
Study on the Discrimination of Ephedra Plants with Diffuse Reflectance FT-NIRS and Multivariate Analysis
傅里叶变换近红外漫反射光谱法结合多元分析技术判别麻黄植物的方法学研究
fourier analyzer
傅里叶分析器谐波分析器
FTIS(Fourier Transform Infrared Spectroscopy)
傅里叶变换红外线分光光谱分析
Analysis of Three-Dimensional Measurement System and the Coordinates Calibration in Fourier Transform Profilometry
傅里叶变换轮廓术物体三维形貌测量的系统分析及其坐标校准方法
fast-Fourier-transform spectrum analyzer
快速傅里叶变换频谱分析仪