中文说明:该程序包是由台湾中央大学编译的,由台湾中央大学数据研究中心提供,主要用于信号分离处理。通过将信号进行EMD(经验模态分解)将信号分为多个IMF(内禀模态函数),然后进行Hilbert变换,获得信号的瞬时幅值与瞬时频率。该程序包是根据黄锷的经典EMD理论编写的,其终止条件仍然为判断相邻信号的标准差,且没有解决边界条件对EMD分解中三次样条插值的影响,容易造成模态混叠,产生多余的频率分量。
English Description:
This package is compiled by the Taiwan Central University, Research Center data provided by the Central University in Taiwan, mainly for signal separation process. By signals EMD (empirical mode decomposition) signal into a plurality of IMF (intrinsic mode functions), then the Hilbert transform to obtain instantaneous amplitude and instantaneous frequency of the signal. The package is based on the classic yellow Ngok written EMD theory, its termination condition is still criterion adjacent signal is poor, and does not solve the boundary conditions affect the decom