中文说明：经验模态分解，将一维离散数据信号分解成本征模态函数，从而将非平稳信号分解成相对相对独立的频率成分的相加
English Description：
Empirical mode decomposition (EMD), which decomposes one-dimensional discrete data signal into eigenmode function, decomposes the non-stationary signal into the sum of relatively independent frequency components