此程序为Gring通用EMD2007之后的版本，其对2003版做了改进，一个程序文件就可以实现EMD的分解-This program for version the Gring General EMD2007 after the 2003 version has been improved, a program file can be achieved EMD decomposition.

vmd，MATLAB程序，针对EMD分解引起的模态混叠问题，能够得到较纯净的IMF分量(VMD, MATLAB program, for the modal aliasing problems caused by EMD decomposition, can get relatively pure IMF components)

利用emd分解轴承振动信号，并通过改进阈值函数来筛选IMF分量，最后对分量做包络分析，诊断出故障类型。(Using emd to decompose the bearing vibration signal, the IMF component was selected by improving the threshold function, and finally the component was enveloped and analyzed to diagnose the fault ty