A method of EEG time-frequency analysis based on the improved S-transform

被引:0
作者
Zhang, Shaobai [1 ]
Huang, Dandan [1 ]
机构
[1] Computer Department, Nanjing University of Posts and Telecommunications
来源
Journal of Computational Information Systems | 2014年 / 10卷 / 01期
关键词
Electroencephalography (EEG); S Transform; Time-frequency analysis; Wavelet transform;
D O I
10.12733/jcis8645
中图分类号
学科分类号
摘要
S-transform, which is a combination of short-time Fourier transform and wavelet transform, has attract intensive interest in recent years as an important tool to investigate non-stationary signal time-frequency distribution. S transform can be self-improved by the EEG characteristics to select a suitable mother wavelet. The improved S-transform will be used to analyze the time-frequency of the EEG characters. A comparison among the Short-time Fourier transform, wavelet transformation and the improved S-transform indicates that improved S-transform gives the best energy distribution in the time-frequency filed. Copyright © 2014 Binary Information Press.
引用
收藏
页码:145 / 151
页数:6
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