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EMD
- EMD 方法在理论上可以应用于任何类型的信号的分解, 因而在处理非平稳及非线性数据上,具有非常明显的优势,适合于分析非线性、非平稳信号序列,具有很高的信噪比。-EMD decomposition method in theory can be applied to any type of signal, which in the non-stationary and nonlinear data, with a very distinct advantage, suitable for anal
arma
- 信号处理,利用滑动平均自回归技术处理平稳信号-ARMA
HHT
- 希尔伯特-黄变换,用于非线性非平稳信号分析-Hilbert- Huang Transform for nonlinear and non-stationary signal analysis
emd
- emd经验模式分解算法,特别适用于非线性非平稳信号的分析处理-Empirical Mode Decomposition
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
- 针对一维非线性非平稳信号降噪的一种算法,EMD算法,这是其MATLAB代码。-An algorithm for one-dimensional nonlinear and non-stationary signal noise reduction, EMD algorithm, which is its MATLAB code.
National-Taiwan-Central-University
- EMD(经验模态分解)程序,用于将非平稳信号分解为一系列不同频率的分量,以方便对信号进行分析。-EMD (empirical mode decomposition) program for the non-stationary signal is decomposed into a series of different frequency components, in order to facilitate the analysis of the signal.
lmd2
- LMD(局域均值分解)程序。与经验模态分解的思想相近,是一种较新的处理非平稳信号的方法,但LMD方法的端点效应更小些。-LMD (local mean decomposition) program. And empirical mode decomposition similar idea, is a relatively new method for non-stationary signals, but the end effect is much smaller LMD method.
EMDs
- 经验模态分解(Empirical Mode Decomposition,EMD)法是美国国家宇航局美籍华人黄锷(N. E. Huang)等人于1998年创造性地提出的一种新型自适应信号时频处理方法,特别适用于非线性非平稳信号的分析处理。-Empirical Mode Decomposition (Empirical Mode Decomposition, EMD) method is a new kind of video processing method adaptive signal NA
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
floc-esprit
- 在脉冲噪声情况下,基于分数低阶统计量的循环平稳信号的波达方向估计-In the case of impulse noise, DOA fractional lower order statistics of cyclostationary signal estimate
wevelete_filters_test
- 利用小波消噪,对非平稳信号的噪声消除-Using wavelet denoising, noise elimination of non-stationary signals
201311
- 采集不同类型轿车的喇叭声音信号并进行时频域分析,得出喇叭声是一个短时平稳信号。-Collection of different types of car horn sound signal and frequency domain analysis, the trumpet is a short-time stationary signal.
package_emd
- emd分解程序,用于处理非平稳信号,已在多个领域广泛应用-EMD decomposition process, used to handle non-stationary signal, has been widely used in many fields EMD decomposition process, used to handle non-stationary signal, has been widely used in many fields
emd
- EMD能够自适应的处理非平稳信号,并将其分解为多个具有物理意义的平稳的固有模态函数(IMF)-Empirical Mode Decomposition (EMD), is proposed in this paper. First, the EMD is used to make the time series stationary. Then based on phase-space reconstruction theory, identify the chaotic characteris
MyPSD
- 自己编写的matlab信号功率谱分析函数,主要用于平稳或非平稳信号的谱分析-one‘s own PSD function
st
- ST 是由地球物理学家stockwell 编写的非平稳信号从时域到频域的转换工具-a signal analysis tool to transfer the signal form time domain to time-frequency domain
LMD
- 是由Smith提出的一种新的非线性和非平稳信号分析方法。由于LMD是依据信号本身的信息进行自适应分解的,产生的PF分量具有真实的物理意义,由此得到的时频分布能够清晰准确地反映出信号能量在空间各尺度上的分布规律。-Is the Smith put forward a new kind of nonlinear and non-stationary signal analysis methods. Because the LMD is the information of the signal it
stft_person
- 自己编写的短时傅里叶变换(STFT)程序,短时傅里叶变换可以获得非平稳信号的时频图,主要原理是用滑窗截取一段信号,认为这一段时间内信号是平稳的,对其进行fft变换获得频谱-I have written a short time Fourier transform (STFT) program, short-time Fourier transform can be obtained non-stationary signal frequency diagram, the main princip
aatftoolbox
- 2002版的时频工具箱,在非平稳信号分析与处理”需要用到该工具箱的部分函数。-When the 2002 edition of the frequency toolbox, in the non-stationary signal analysis and processing, the need to use part of the function of the toolbox.