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 ana