One is a time-frequency distribution based EMD, the other is nonlinear energy operator (NEO) based on EMD, and both of them have good results in epileptic EEG signal processing.

• 一个是基于EMD的时频分布,另一个是基于EMD的非线性能量算子(NEO)方法,其在癫痫脑电信号的处理中都取得了比较好的效果。