| 脑电信号采集系统的设计 |
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| 引用本文： | 李亚杰,宋明星,张玉栋.脑电信号采集系统的设计[J].河北建筑工程学院学报,2014(1):127-130. |
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| 作者姓名： | 李亚杰 宋明星 张玉栋 |
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| 作者单位： | 河北建筑工程学院,河北张家口075000 |
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| 摘 要： | 分析了脑电信号作为生物电信号的特征,并根据这些独有的特征提出了对采集脑电信号的系统的性能要求,从而规划出整体的设计框图.系统具有高输入阻抗、高共模抑制比的等特点,并且具有良好的实时性和通用性.其中,信号采集部分是将电极记录的脑电信号进行三级的放大和滤波,最终将此信号传送至模数转换模块.
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| 关 键 词： | 生物脑电信号 信号采集 放大 滤波 |
The Design of An EEG Ac-uisition System |
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| LI Ya-jie,SONG Ming-xing,ZHANG Yu-dong.The Design of An EEG Ac-uisition System[J].Journal of Hebei Institute of Architectural Engineering,2014(1):127-130. |
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| Authors: | LI Ya-jie SONG Ming-xing ZHANG Yu-dong |
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| Affiliation: | (Hebei Institute of Architecture and Civil Engineering, Zhangjiakou, Hebei 075024) |
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| Abstract: | The characteristics of EEG signals are analyzed in the paper,based on which the performance requirements of the system of acquiring EEG signals are put forward,planning the overall design diagram.The system has such characteristics as high input impedance,high common-mode rej ec-tion ratio,good real-time performance and versatility.Among them,the signal acquisition part is to make EEG signals recorded from electrodes be amplified and filtered by three levels,and finally transmitted to the analog digital conversion module. |
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| Keywords: | biological EEG signal signal acquisition amplification filtering |
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