关于希尔伯特黄变换（HHT）中最重要的概念即本征模态函数（IMF）的程序，初学者可利用该程序对任意信号进行分解，加强对HHT的理解。-For the Hilbert-Huang Transform (HHT) the most important concept that the intrinsic mode function (IMF) procedures, beginners can use the program to decompose the arbitrary signal, to strengthen the understanding of HHT.