“…At present, researchers have used algorithms in various fields to study the feature extraction and classification of EEG signals. The common feature extraction algorithms include: autoregressive model (AR model) (Argunsah and Cetin, 2010), power spectral density estimation (Seth et al, 2017), wavelet transform (Ocak, 2009), chaos method (Lv et al, 2004), common spatial pattern (CSP) (Blankertz et al, 2008;Ramoser et al, 2000), new descriptor (Kapoor et al, 2016), multi-dimensional statistical analysis (Weis et al, 2010) and so on. The frequently used classification methods include Fisher linear discriminant analysis (Harikumar, 2017), Bayesian method (Bashashati et al, 2016), BP neural network (Gao et al, 2012), support vector machine (Hortal et al, 2015) and so on (Roeva and Atanassova, 2016;Yang et al, 2012;Kaper et al, 2004;Wang et al, 2005;Deriche and Alani, 2001).…”