EMD的实例测试函数，自己修改过的，可以显示imf分量频谱-Examples of EMD test function, with my own modify, you can display imf component spectrum

本程序主要通过EMD和hilbert求IMF，作出HHT归一化能量谱图（三维图），边际谱图和瞬时能量图，并做完备性验证，比较好用-This program mainly by EMD and Hilbert and the IMF, make the HHT normalized energy spectra (three-dimensional figure), marginal spectrum and instantaneous energy diagram, completeness,

HHT就是先将信号进行经验模态分解（EMD分解），然后将分解后的每个IMF分量进行Hilbert变换，得到信号的时频属性的一种时频分析方法。-HHT is the first signal empirical mode decomposition (EMD decomposition), and then each IMF component decomposed Hilbert transform, frequency analysis method of time-frequency pro

该程序实现对信号进行经验模态分解，并进行多个IMF分量的比较。-The program for the signal to carry on the empirical mode decomposition, and carry on the comparison of multiple IMF component.