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HHT
- 本程序为希尔伯特变换程序~里面附带了emd.m经验模态分解程序(需要下载时频工具包)-This program for the Hilbert transform ~ it comes with the emd.m empirical mode decomposition program (need to download the time-frequency toolkit)
hhtemd
- HHT工具箱,EMD分解必备的东西,希尔伯特黄变换用的工具箱和emd程序代码-HHT toolbox, EMD decomposition of essential things, Hilbert-Huang Transform toolbox and program code used emd
Matlab-File-Exchange-Center
- 实现希尔伯特-黄变换的功能,并带有一段测试数据。希尔伯特-黄变换是使用EMD分解将信号分解为本征模态函数(IMF),然后求得IMF分量的瞬时频率。其对于非稳态和非线性信号具有优良的效果。-The function plot_hht is a realization of the Hilbert-Huang transform (HHT). The HHT decomposes a signal into intrinsic mode functions (or IMFs), and obtain
HHT2
- Hilbert变换只是单纯地求信号的瞬时振幅,频率和相位,有可能出现没有意义的负频率;HHT变换先将信号进行EMD分解,得到的是各个不同尺度的分量,对每一个分量进行Hilbert变换后得到的是有实际意义的瞬时频率。 -imagesc(t,fliplr((1:size(im,1))/(2*size(im,1))),im,[inf,0]) set(gca, YDir , normal ) xlabel([ time ]) ylabel([ normalized f
3MATLABYUYIN
- 3.1语音信号的同态处理和倒谱分析30 3.1.1同态处理的基本原理30 3.1.2复倒谱和倒谱31 3.2离散余弦变换34 3.3Mel频率倒谱系数的分析37 3.3.1Mel滤波器组37 3.3.2MFCC特征参数提取38 3.4小波和小波包变换43 3.4.1小波变换43 3.4.2小波包变换44 3.4.3小波包算法45 3.4.4MATLAB中一维小波和小波包变换函数46 3.4.5MATLAB语音信号小波和小波包变换的例子49 3.
bianjipu
- emd分解后希尔伯特变换,边际谱,可直接调用产生边际谱-After emd decomposition Hilbert transform marginal spectrum can be called directly produce marginal spectrum
test
- 用希尔伯特黄变换得到的emd分解程序,能够分析出瞬时频率-Hilbert-Huang transform with the emd decomposition process, can analyze the instantaneous frequency
HHT-Matlab-runcode
- HHT就是Hilbert-Huang Transform(希尔伯特黄变换),美国航天航空局黄鳄教授发明的,大概的过程是:先对信号进行经验模态分解(Empirical mode decomposition -EMD),得出本征模态函数(IMF intrinsic mode function),再对本征模态函数进行希尔伯特变换-HHT is the Hilbert-Huang Transform (Hilbert-Huang Transform), NASA Professor Huang E in
HHT
- 对正弦信号进行EMD分解,并进一步求它的瞬时频率和HILBERT谱图。-The sine signal EMD decomposition, and further its instantaneous frequency and the HILBERT spectrum diagram
2
- 首先,对复杂振动信号进行EMD分解,得到各个频率分量,接着,对各分量进行Hilbert变换,得到瞬时频率-END resolve,hilbert chang,evry imf,instantaneous frequency
program
- 包括emd分解程序,求边际谱程序,hilbert包络解调程序,求取小波包频带能量程序,K均值聚类程序-fault diagnosis program
HHT
- 希尔伯特黄变换的实际应用代码,包括emd分解以及谱图生成-The actual application code Hilbert Huang Transform, including emd decomposition and spectra generated
practice
- 里面的有些自适应的程序文件是后来加上去的,有些还调试不成功。但是生成局放信号,对其emd分解,频谱显示,希尔伯特变换,这些都能够实现。效果很好-Inside some files are added later, and some debugging unsuccessful. But PD signal generation, emd decomposition, spectrum display, Hilbert transform, which are able to achieve. G
HHT
- Hilbert-Huang变换(HHT)是一种新的非平稳信号处理技术,该方法由经验模态 分解(EMD)与Hilbert谱分析两部分组成。任意的非平稳信号首先经过EMD方法处理后被分解为一系列具有不同特征尺度的数据序列,每一个序列称为一个固有模态函数(IMF),然后对每个IMF分量进行Hilbert谱分析得到相应分量的Hilbert谱,汇总所有Hilbert谱就得到了原信号的谱图。该方法从本质上讲是对非平稳信号进行平稳化处理,将信号中真实存在的不同尺度波动或趋势逐级分解出来,最终用瞬时频率和能量来
KUAISUEEMD
- 改进的希尔伯特黄变换的matlab实现,对信号进行emd分解,信号分析-Improved Hilbert-Huang transform matlab realize, emd decomposition of the signal, the signal analysis
EMD1
- 本程序主要通过EMD和hilbert求IMF,边际谱图和瞬时能量图,并做完备性验证-This program seek IMF, marginal spectrum and instantaneous energy diagram by EMD and hilbert, and do completeness verification
pinpufenxi
- 包含有希尔伯特黄变换的主程序、边际谱的计算方法、并绘制了仿真信号的FFT频谱和功率谱,并调用emd分析方法,绘制了emd分解结果,以及瞬时包络和瞬时频率图,还有Hilbert-Huang谱和Hilbert边际谱- Including the main program of the Hilbert Huang transform, marginal spectrum calculation method, and draw the simulation signal FFT spectrum
matlab
- 进行希尔伯特黄变换时,用EMD方法分解出IMF函数的程序- When Hilbert-Huang transform method using the EMD decomposition of functions IMF program
hht
- 黄鳄鱼提供的完整Hilbert Huang Transform程序,java源码,含EMD,EMD1,EMD2,频谱,边际频谱,图形界面,测试例程等。-complete java source code for Hilbert- Huang Transform, this package is a official version provide by Professor NordenE.Huang,all class just as EMD,EMD1,EMD2,spectrum,chart e
1HIBERT
- hilbert提取心音包络.此程序包含心音信号的低通滤波、小波去噪、EMD分解、希尔伯特黄变换以及心音阈值定位一系列算法。-hilbert extract PCG envelope low pass filter This program contains heart sound signals, wavelet de-noising, EMD decomposition, Hilbert-Huang transform and heart sound threshold locate a se