HHT方法在不同思维作业脑电信号分析中的应用

Application of HHT to different mental tasks in EEG analysis

介绍了一种处理非线性、非平稳信号的新方法——HHT的原理及特点,并将其应用于不同思维作业脑电信号分析。实验结果表明,不同思维作业脑电信号经HHT后的HH谱和Hilbert边际谱都差异显著,证明HHT方法对脑电信号处理的可行性。

The non-linear, non-stationary signal processing method named Hilbert-Huang Transformation （HHT） and its characteristics were introduced, and it was applied to the different mental tasks in EEG analysis. The results indicate that different mental tasks in EEG have different Hilbert-Huang spectrums and Hilbert marginal spectrums, which Proves HHT to be a feasible method on EEG analysis.