经验模态分解方法是由美国NASA的黄锷博士提出的一种信号分析方法.它依据数据自身的时间尺度特征来进行信号分解, 无须预先设定任何基函数。(The empirical modal decomposition method is a kind of signal analysis method proposed by Dr. Huang E of NASA, which decomposes according to the time scale characteristic of the data