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6-Instantaneous-Frequency
- 分解后的一些希尔伯特黄变换,边际谱,瞬时能量,瞬时频率。。。很好的,值得一看-Some decomposed Hilbert-Huang transform, marginal spectrum, instantaneous energy, instantaneous frequency. . . Good, worth a visit. .
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
spec-analysis
- 功率谱是功率谱密度函数的简称,它定义为单位频带内的信号功率。它表示了信号功率随着频率的变化情况,即信号功率在频域的分布状况。-Spectral analysis or Spectrum analysis is analysis in terms of a spectrum of frequencies or related quantities such as energies, eigenvalues, etc. In specific areas it may refer to:
HHTsimulation
- 用希尔伯特黄变换(HHT)求时频谱和边际谱-Using Hilbert Huang transform (HHT) to find the spectrum and marginal spectrum
baoluopu_baoluoxian
- 现代希尔伯特变换解调分析,一个求包络线和包络谱的程序-Modern Hilbert transform demodulation analysis, a program seeking envelope and envelope spectrum
MATLAB
- MATLAB希尔伯特Hilbert变换求包络谱用于滚动轴承故障检测,对于滚动轴承故障信号进行包络普分析,确定其故障类型。-MATLAB Hilbert Hilbert transforms envelope spectrum for rolling bearing fault detection, fault signal for Rolling Cape envelope analysis to determine which type of fault.
HHT
- 希尔伯特黄变换的MATLAB程序,可以对数据自动进行emd分解,并画出相应函数的边际谱。-Hilbert Huang Transform MATLAB program, the data can automatically emd decomposition and draw marginal spectrum corresponding function.
bjp
- fft与边际谱的对比,并画出hilbert图和三维时频谱图-compare fft with marginal spectrum and plot the hilbert figure and 3d time-frequency picture
chengxu
- 实现信号FFT,FIR滤波器滤波,hilbert变换,包络谱的绘制-Signal FFT, FIR filter filter, Hilbert transform, the envelope of the spectrum
Hilbert_huang
- 仿真信号的FFT频谱和功率谱,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。-The FFT spectrum and power spectrum of the simulated signal, the emd decomposition results, and the instantaneous envelope and instantaneous frequency maps, as well as the Hilbert-Hu
画包络谱和幅值谱的matlab程序
- 关于画HHT方法中包络谱和幅值谱的程序,可以精确画出Hilbert包络谱的图像(On painting HHT method in the envelope spectrum and amplitude spectrum procedures, you can accurately draw Hilbert envelope spectrum of the image)
matlab hisp
- 在matlab中对信号进行希尔伯特变换 边际谱分析。(In MATLAB, the Hilbert transform marginal spectrum analysis is carried out)
emd
- 该方法的关键是经验模式分解,它能使复杂信号分解为有限个本征模函数(Intrinsic Mode Function,简称IMF),所分解出来的各IMF分量包含了原信号的不同时间尺度的局部特征信号。经验模态分解法能使非平稳数据进行平稳化处理,然后进行希尔伯特变换获得时频谱图,得到有物理意义的频率。与短时傅立叶变换、小波分解等方法相比,这种方法是直观的、直接的、后验的和自适应的,因为基函数是由数据本身所分解得到。由于分解是基于信号序列时间尺度的局部特性,因此具有自适应性。(The key of thi
HHT函数库
- 用于HHT算法中希尔伯特谱二维图形展示,IMF分量分解计算函数(Used for Hilbert-Hubert spectrum two-dimensional graphics display, IMF component decomposition calculation function)
EMD模型
- 经验模态分解(Empirical Mode Decomposition,简称EMD))方法被认为是2000年来以傅立叶变换为基础的线性和稳态频谱分析的一个重大突破?,该方法是依据数据自身的时间尺度特征来进行信号分解,无须预先设定任何基函数。 该方法的关键是经验模式分解,它能使复杂信号分解为有限个本征模函数(Intrinsic Mode Function,简称IMF),所分解出来的各IMF分量包含了原信号的不同时间尺度的局部特征信号。经验模态分解法能使非平稳数据进行平稳化
1
- 针对矿浆管道工况调整给泄漏检测带来的干扰,准确提取泄漏信号的特征量是降低泄漏误报、漏报的关键。为此,提出了一种基于经验模态分解(EMD)、Hilbert能量谱与变量预测模型(VPMCD)相结合的泄漏检测方法。该方法首先将压力信号分解成若干个固有模态函数(IMF)之和,然后将IMF分量进行Hilbert变换得到局部Hilbert能量谱,依据能量分布的标准差选择最能准确反映矿浆管道运行工况的局部能量谱作为特征值向量,最后通过VPMCD分类器建立泄漏识别模型。将该方法应用于泄漏检测中,实验结果表明,矿
HHT
- 希尔伯特黄变换,经验模态分解,边际谱,超级全代码,可以出图可以自由更换信号(Hilbert Huang transform, empirical mode decomposition, marginal spectrum, super full code, mapping and free signal replacement)