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emd2003

于 2007-04-17 发布文件大小:21KB

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代码说明：

用经验模式分解分解出固有模式函数，从而得出瞬时频率和包络，适合进行特征提取(using empirical mode decomposition decomposition patterns inherent function, thereby reaching and instantaneous frequency envelope, suitable for feature extraction)

文件列表：

emd2003
.......\basic emd
.......\.........\emd.m
.......\.........\io.m
.......\Hilbert-Huang spectrum
.......\......................\hhspectrum.m
.......\local emd
.......\.........\emd_local.asv
.......\.........\emd_local.m
.......\on-line EMD
.......\...........\emd_online.m
.......\visualization
.......\.............\disp_hhs.m
.......\.............\emd_visu.m
.......\.............\toimage.m

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进行纯净信号和加噪信号的时频域显示，及其包络图显示，并计算加噪信号的信噪比、互相关系数、峭度值，对信号进行离散余弦变换。(The time-frequency domain display of pure signal and noise-added signal and its envelope diagram display are carried out, and the signal-to-noise ratio, correlation coefficient and kurtosis value of noise-added signal are calculated.Making Discrete CoSine transform for signal)

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