经验模式分解(EMD)将信号分解成多个IMF分量，每个IMF分量代表一定频率尺度的模式,Empirical Mode Decomposition

经验模态分解程序，分解出各本征模函数。直至剩余部分变为不含任何模式信息的单调序列即余项。(The empirical mode decomposition program decomposes the eigenmode functions. Until the rest part becomes a monotone sequence that does not contain any pattern information, that is the remainder.)