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A201001-2186
- 频谱分析仪是信号处理研究领域必不可少的工具。现有的基于快速傅利叶变换的频 谱分析仪能对线性的平稳的信号进行有效分析，但难以分析出非线性非平稳信号的瞬时频率 能量变化情况。针对此问题，本文设计了基于希尔伯特黄变换的频谱分析仪，能够对非平稳 信号进行有效分析。所设计系统以DE2-FPGA开发板为硬件平台，结合了NiosII的软核处 理器加以实现，可对采集的外部信号进行希尔伯特黄变换，得到信号的时间-频率-能量三维 谱，并可在VGA上实时显示出来。系统测试结果表明，所设计频谱分析仪
emd
- 这个是希尔伯特黄变换自己改的EMD经验模态分解仿真程序。-This is the Hilbert-Huang Transform own reform empirical mode decomposition EMD simulation program.
plot_hht
- 这个程序是希尔伯特黄变换的希尔伯特变换部分的MATLAB仿真程序。-This program is Hilbert Huang Transform Hilbert transform part of the MATLAB simulation program。
hht
- 这个程序是用希尔伯特黄变换HHT求取信号的时频谱与边际谱代码。-This procedure is used Hilbert Huang Transform HHT strike when the signal spectrum and marginal spectrum code.
emd
- EMD经验模态分解,用于信号处理，也常和hilbert变换一起用于信号特征提取、信号消噪等领域-EMD empirical mode decomposition for signal processing, and is often used in conjunction with hilbert transform signal feature extraction, signal de-noising and other fields
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
Matlab_hibert
- 对正弦信号做希尔伯特变换及其频谱分析，适合学习计算方法的学生-Do sinusoidal signal and a Hilbert transform spectrum analysis, calculation methods for student learning
hht---zhendong
- 希尔伯特黄变换应用于转子震动，包括时频图，希尔伯特变换图，边际谱。-Hilbert-Huang transform is applied to the rotor vibration, including the time-frequency diagram, Hilbert transformation graphs, marginal spectrum.
complete1
- This paper describe the features extraction algorithm for electrocardiogram (ECG) signal using Huang Hilbert Transform and Wavelet Transform. ECG signal for an individual human being is different due to unique heart structure. The purpose of feature
A58g
- This paper describe the features extraction algorithm for electrocardiogram (ECG) signal using Huang Hilbert Transform and Wavelet Transform. ECG signal for an individual human being is different due to unique heart structure. The purpose of feature
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
HilbetTest
- 利用希尔伯特变换实现信号包络的提取，可以用于信号的包络检波-Hilbert transform to extract the signal envelope to achieve, it can be used to envelope detection signal
STFT
- 对信号进行希尔伯特变换、小波降噪、频谱分析和短时傅里叶变换-To Hilbert envelope of the signal, the wavelet noise reduction and frequency spectrum analysis and short time Fourier transform
chengxu
- 用希尔伯特变换得到信号包络，并对信号进行FIR带通滤波后得到信号的包络谱-Get signal envelope with Hilbert transform, and the signals are FIR bandpass filter after get the spectral envelope signal
HHThuafenchenjixuanhui
- hht_example.m 是主程序 画单道数据的hilbert图谱函数形式 [h w xs]=nspab(data,nyy,minw,maxw,dt) 画单道数据的瞬时频率镜像函数形式 line_hht(x,Ts)-hht_example.m map function is hilbert main draw single-channel data in the form of [hw xs] = nspab (data, nyy, minw, maxw, dt) functio
xiebotebianhuan
- 主要运用labview的编程功能完成对信号的希尔伯特变换，从而更好的理解希尔波特变换。-The main use labview programming features to complete the signal of the Hilbert transform, so as to better understand the Hilbert transform.
emd
- 算法是emd分解，研究希尔伯特黄变换的首要任务就是需要将信号进行emd分解-Emd decomposition algorithm research priorities Hilbert-Huang Transform is the need to signal emd decomposition
instantprocess
- 希尔伯特变换可以对信号进行取包络，提取相位曲线，瞬时频率曲线-Hilbert transform can take the signal envelope curve extraction phase, instantaneous frequency curve and so on
wavelet-packet-of-piston-pumps
- 液压泵振动信号的小波包分解以及功率谱分析，仿真信号的Hilbert谱以及边际谱；仿真信号的小波包能量计算-wavelet packet decomposition and power spectrum of vibration signals for piston pump Hilbert spectrum and marginal spectrum of stimulated signals