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FFTfrequencychartisanalytical
- 1.通过实验加深对快速傅立叶变换(FFT)基本原理的理解。 2.了解FFT点数与频谱分辨率的关系,以及两种加长序列FFT与原序列FFT的关系。 离散傅里叶变换(DFT)和卷积是信号处理中两个最基本也是最常用的运算,它们涉及到信号与系统的分析与综合这一广泛的信号处理领域。实际上卷积与DFT之间有着互通的联系:卷积可化为DFT来实现,其它的许多算法,如相关、滤波和谱估计等都可化为DFT来实现,DFT也可化为卷积来实现。-1. Deepen the experimental fast Fou
two_dimensional_PSD
- 二维功率谱密度计算程序 使用傅里叶变换 -2D PSD caculation estimator
DigitalSignalofMatlab
- 数字信号处理,包括:各种现有信号及随机信号的输入,从文件读取数据的输入,各种滤波器的实现,傅里叶变换等,傅里叶反变换等,谱分析,利用图形界面形式编写,简单且可视化强,便于理解。-Digital Signal Matlab
GenerationOfTheLog-normalDistributionClutter
- 本程序已被本人整理到WORD文档中,编程语言为MATLAB,本文设计的滤波器采用傅里叶级数展开法。模拟的杂波的功率谱密度采用BVURG法,概率密度函数的估计采用直方图估计法,设计参数皆在文档中表明。此程序已经验证是正确可执行的,并能生成图形,值得下载!-This program has been organized into WORD document I, the programming language MATLAB, the filter designed in this paper Fo
daopufenxi
- 倒谱分析 倒谱分析是指信号短时振幅谱的对数傅里叶反 变换。它具有可近似地分离并提取出频谱包络信息 和细微结构信息的特点-Cepstrum analysis cepstrum analysis is the signal amplitude spectrum on the number of short-time Fourier inverse transform. It has can be approximately isolated and extracted spectral en
diyiwen
- 已知DNA序列的碱基顺序,利用快速傅里叶变换得到功率谱-The nucleotide sequence of the DNA sequence is known, the use of fast Fourier transform to obtain the power spectrum
analyse1
- MATLAB实现DNA序列的傅里叶谱计算-MATLAB implementation of the Fourier spectrum of the DNA sequence calculation
f1
- 计算地震波的傅里叶谱,内部含有详细解释,便于读者对参数的修改-Fourier spectrum to calculate seismic waves, internal contain a detailed explanation easy readers modified parameters
fangbo
- 方波傅里叶变换,功率谱计算等基于MATLAB仿真平台(FFT for this fangbo the invition of sensitive inovation like maniuplant simulation)
teechart
- 在visual studio 2012的环境下,采用快速傅里叶变换(FFT)对随机信号进行经典功率谱估计,并用MFC编程实现。其中要下载并安装teechart控件实现波形绘制(In the visual studio 2012 environment, the fast Fourier transform (FFT) is used to estimate the classical power spectrum of random signals, and is programmed with
STFT Spectrogram Demo
- STFT谱图演示,方便新手学习的简单例子。(STFT spectrum demo, easy for beginners to learn a simple example.)
baoluopu
- 包络谱图:对傅里叶变换作包络谱分析,经验证,可用(Envelope spectrum: the envelope spectrum analysis of Fu Liye transform, which can be used after verification)
画包络谱和幅值谱的matlab程序
- 基于傅里叶变换,实现了包络谱和幅值谱分析。(Based on Fourier transform, envelope spectrum and amplitude spectrum analysis are realized.)
小波分析仿真程序
- 小波分析课程部分仿真程序,涉及加窗傅里叶变换、信号分解重构等,每步都有有详细注释(A part of the simulation program for the course of wavelet analysis.Relates to the windowed Fourier transform, signal decomposition and reconstruction, every step has a detailed notes .)
全矢谱计算
- 郑州大学的韩捷教授提出了基于同源信息融合技术的全矢谱(Full VectorSpectrum)分析方法。全矢谱的图谱和传统的傅里叶变换频谱图表达形式一样,都是将各谐波频率作为横坐标,各谐波频率下的振动强度作为纵坐标。正因为如此,全矢谱分析方法和传统分析方法相兼容,并且还有一套快速稳健具有容错性的全矢数值计算方法。 此程序为全矢谱计算代码(Prof. Han Jie of Zhengzhou University proposed a Full VectorSpectrum analysis m
meshage
- 模拟了正弦光栅及其傅里叶空间频谱,可以调节其空间频率,看到其傅里叶谱的变化过程(Simulating a sinusoidal grating and its spatial spectrum using matlab)
MATLAB
- 通过求解信号的包络谱和快速傅里叶变换,进行分析(By analyzing the envelope spectrum and fast Fourier transform of the signal, the analysis is carried out.)
利用傅里叶变换和包络谱对轴承异响的分析
- 利用轴承声音信号做频谱分析和包络谱分析。(using voice of bearing vibration for FFT and hilbert FFT)
超连续谱,SC,GNSLE
- 依据《SUPERCONTINUUM GENERATION IN OPTICAL FIBERS》而来,SPM,XPM,FWM,拉曼效应,利用分步傅里叶法和龙格库塔方法来求解广义非线性薛定谔方程
2905伪谱法地震波正演模拟
- 地震波伪谱法正演,时间导数采用有限差分,空间导数采用快速傅里叶变换法计算。(seismic wave forward modeling by pseudospectral method)