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松斋 经典功率谱估计
- 接法又称周期图法,它是把随机序列x(n)的N个观测数据视为一能量有限的序列,直接计算x(n)的离散傅立叶变换,得X(k),然后再取其幅值的平方,并除以N,作为序列x(n)真实功率谱的估计。 -Connection also known as cycle map, it is random sequence x (n) N observational data as a sequence of limited energy, direct calculation x (n) the discr
xiaobo1
- 小波分析,及小波能量谱分析,信号分析与处理技术-wavelet analysis, and wavelet energy spectrum analysis, signal analysis and processing technology
rtcmas_client
- 小波包分析提取振动信号中的特征频率,以及能量谱分析计算-wavelet packet analysis vibration signal from the characteristic frequency, and the energy spectrum analysis
duocengmo
- 小波分析,及小波能量谱分析,信号分析与处理技术小波分析,及小波能量谱分析,信号分析与处理技术-wavelet analysis, and wavelet energy spectrum analysis, signal analysis and processing technology wavelet analysis, and wavelet energy spectrum analysis, Signal Analysis and Processing Technology
hosa
- 高阶谱的计算,主要针对数字图像处理中的能量谱
端点检测程序 多频带,熵 谱熵 teger能量
- 端点检测程序 多频带,teger能量,matlab自己编写
Hilbert-Huang希尔伯特黄变换(HHT)的Matlab实现
- 代码中的plot_hht函数实现了Hilbert-Huang变换(HHT),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,从而过进一步得该信号的希尔伯特谱、时频能量谱等,以便对信号进行分析,据介绍对非线性及非平稳信号有较
FFT_IFFT.rar
- (1)求出两维单色数字图象的傅立叶变换以及逆变换,除对比图象效果外,还要给出以中心点作为原点图象显示方式的傅立叶变换的频谱、相位谱,并验证两维傅立叶变换的性质。 (2)傅立叶变换后,计算图象能量谱的分布范围:画出包含图象能量92.0%,94.6%, 96.4, 98.0% 以及99.5% 的圆圈区域。,(1) obtained two-dimensional monochrome digital image of the Fourier transform and inverse transf
xbnlp
- 小波包能量谱的计算,对信号进行频段分析,特征提取,用于模式识别-wavelet packet energy spectrum
WPC
- 非常实用的小波包分解程序,以及实现对小波包分解频带求取频谱和能量谱-Very useful wavelet packet decomposition process, and the realization of the wavelet packet decomposition to obtain the spectrum and the energy spectrum band
wavelet
- 小波包分析提取振动信号中的特征频率,以及能量谱分析计算-wavelet packet analysis vibration signal from the characteristic frequency, and the energy spectrum analysis -Extraction of wavelet packet analysis in the vibration signal characteristic frequency, as well as the calculati
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- 对信号的边际谱分析,三维能量谱分析以及时频分析的有关程序-Spectral analysis of the marginal signal, three-dimensional power spectrum analysis and time-frequency analysis of the procedure .......
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- 对机械振动信号用三维能量谱进行分析-Mechanical vibration signals of three-dimensional power spectrum analysis. . . . . . . . . . .
fft-filter
- 该程序为傅立叶变换,用来将时域信号进行频域信号分析,保护功率谱、能量谱等。-The program for the Fourier transform, time-domain signal to the frequency domain signal analysis, to protect the power spectrum, the energy spectrum.
untitled
- 随机速度场生成函数,用来对比能量谱,从而分析速度能换(The random velocity field generating function is used to compare the energy spectra)
SpectrumEstimation.m
- 通过经典周期图法,平均周期图法,MUSIC法等三种方法,进行信号能量谱估计(Three methods, such as the classical periodic graph method, the average periodic graph method and the MUSIC method, are used to estimate the energy spectrum of the signal.)
EMD_hilbert谱
- emd分解之后再进行希尔伯特变换,获得能量谱(After EMD decomposition, Hilbert transform is used to obtain the energy spectrum.)
小波包能量谱
- 用于信号特征提取,提取信号的小波包能量谱(Extracting the wavelet packet energy spectrum of the signal)
1.5维能量谱
- 1.5维能量谱matlab程序,有需要的可以下来看看(1.5-dimensional energy spectrum matlab program)
1.5维能量谱MATLAB代码
- 1.5维能量谱matlab程序,有需要的可以下来看看,文件包含1.5维能量谱、1.5维包络谱,可直接运行使用