搜索资源列表
My_HHT_TestMain
- 基于经验模式分解的完整代码代码，可以对加了噪声的信号进行多层分解，求取imf值，并并进行hht变换，得到相应的一维、二维、三维谱图-Empirical mode decomposition code, can be to multi-layer decomposition of signal with noise, obtain the fund value, and the HHT transform, and get the corresponding one-dimensional, tw
fa
- 用来计算固有模态函数（IMF）瞬时频率及振幅包络的代码-The function FA computes a frequency and amplitude of data(n,k), where n specifies the length of time series, and k is the number of IMFs.
gaijinifm
- 一种改进的IMF图像去噪方法程序，简单易学，实惠好用。-easy to use.
hilbert-spectrom
- HHT就是先将信号进行经验模态分解（EMD分解），然后将分解后的每个IMF分量进行Hilbert变换，得到信号的时频属性的一种时频分析方法。-HHT is the first signal empirical mode decomposition (EMD decomposition), and then each IMF component decomposed Hilbert transform, frequency analysis method of time-frequency pro
EMD
- 这是EMD分解的matlab程序，可以进行imf分解，及求解包络求解-this is EMD program ，it can process imf divide.
Desktop
- EMD是处理非线性、非平稳性信号的有效的新方法，本程序是振动信号EMD分解程序，可以把振动信号分解成多个IMF分量和一个残余量。-EMD is nonlinear, effective new method of non-stationary signals, this program is the vibration signal EMD decomposition process, the vibration signal can be decomposed into multiple co
2464613103
- 基于小波变换和 HHT 的分布式并网系统谐波检测方法。 该方法利用小波变换多分辨率分析思想对信号进行划分，并对划分后的信号进行经验模态分解，得到一系列的经验模态函数IMF，并从 IMF分量中提取出基波分量和高次谐波；再对IMF分量进行Hilbert 变换得到信号的频率、幅值信息。-Wavelet transform and HHT based distributed systems and network harmonic detection method. The method use
EMD
- 将原信号进行EMD分解，得到一系列IMF分量，这些分量是按频率从高到低排列-EMD decomposition of the original signal to obtain a series of IMF components, which are arranged according to the frequency high to low
EEMD
- 对EMD分解的改进，消除了EMD分解过程中的模态混叠现象，可以得到更准确的IMF分量-EMD decomposition for improvement, eliminating the EMD decomposition process modal aliasing, you can get a more accurate IMF components
Phase-and-frequency-and-mode-shape
- phase its about phase of a signal or imf that you can find it for another things also in this code you can fine the amplitude of a complex number-phase its about phase of a signal or imf that you can find it for another things also in this co
splinenormalize
- function [ndata,a]=splinenormalize(data) The function SPLINENORMALIZE normalizes with splines, the data(n,m) where n specifies the number of time points, and m is the number of IMF components. The normalization is carried out with both m
powerpotint--of-emd-theory
- 对EMD分解方法每一步的结果展示，包括求包络线、取平均值、减平均值后再求包络线，最后得IMF分量-EMD decomposition results for each step of the show, including seeking envelope, averaged, and then find the average value minus the envelope, and finally get IMF component
simplyhht
- 改进的hht算法，速度更快，分解出两个IMF。-Hht improved algorithm, faster decomposition of two IMF.
eemd1
- 亲测真正可以运行的eemd,可用来进行分解，进而得到imf-it is the eemd which could run actually.welcome to download.
Desktop
- 用已有的imf 分量画hht谱图，需要调用InstFreq 函数-Imf components with the existing painting hht spectrum function call InstFreq
National-Taiwan-Central-University
- The current MATLAB program of HHT includes the following modules: 1) eemd.m. The module that performs EMD/EEMD 2) ifndq.m. The module that calculates an instantaneous frequency for a given IMF and 3) extrema.m. A
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
IMF_Bearing
- code for imf bearing, using hht-code for imf bearing, using hht
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
EMD
- 本程序主要通过EMD求IMF，边际谱图和瞬时能量图-This procedure mainly seek through EMD IMF, marginal spectrum and instantaneous energy diagram