计算机与现代化

• 算法设计与分析 • 上一篇    下一篇

基于MP算法的脑电信号去噪

  

  1. 宝鸡文理学院电子电气工程系,陕西宝鸡721013
  • 收稿日期:2013-12-25 出版日期:2014-04-17 发布日期:2014-04-23
  • 作者简介:作者简介:王利(1986),女,陕西商洛人,宝鸡文理学院电子电气工程系助教,硕士,研究方向:信号处理。
  • 基金资助:
     
    基金项目:宝鸡文理学院校级重点项目(ZK12108)

EEG Signals Denoising Based on MP Algorithm

  1. Department of Electronic and Electrical Engineering, Baoji University of Arts and Sciences, Baoji 721013, China
  • Received:2013-12-25 Online:2014-04-17 Published:2014-04-23

摘要:  

摘要: 针对脑电信号在采集过程中易受噪声干扰的问题,提出使用匹配追踪算法将脑电信号与噪声进行分离,进而去除噪声,并通过信噪比和相关系数对去噪效果进行检测。仿真结果表明,该方法不仅能够有效地抑制工频噪声,还可以较好地保持脑电信号的波形特征。

关键词: 匹配追踪, 过完备库, 脑电信号, 去噪, 信噪比

Abstract:  

Abstract:  Electroencephalograph(EEG) signals are usually interfered by noises during signal acquisition process. This paper uses the matching pursuit algorithm to separate EEG signals and noises, thereby removing noises, and the denoising effects are tested by signal to noise ratio and correlation coefficient. The experimental results show that this approach not only can effectively restrain the power frequency noise, but also be able to keep the shape feature of the EEG signal unchanged.
 Key words:  matching pursuit (MP); overcomplete dictionary; electroencephalograph(EEG); denoising; signaltonoise ratio

Key words:

中图分类号: