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요약정보
μV级脑电信号采集系统的关键技术 / The Key Technologies of μV-level EEG Acquisition System
Resource Type
Academic Journal
Authors
黄河涛
;
杜玉晓
;
董建
;
HUANG He-tao
;
DU Yu-xiao
;
DONG Jian
Source
实验室研究与探索 / RESEARCH AND EXPLORATION IN LABORATORY
. 28(9):72-76
Subject
脑电图
μV级脑电信号
工频干扰
高速同步数据采集
Language
Chinese
ISSN
1006-7167
Online Access
Find it @ DONGA
초록
μV级脑电信号采集技术是生物电信号检测的一个瓶颈,在保证足够高的信号增益前提下有效抑制外界干扰是μV级脑电信号采集的关键问题.以C<,3>+C4电极电位平均作为单极导联公共参考电极,结合Z电极电位反馈控制技术、50 Hz工频干扰抑制技术和基于高速串行AD的多导联同步信号采集技术,在不采用前端50 Hz工频陷波器的前提下,将外界干扰尤其是50 Hz工频干扰有效地抑制,得到较好脑电波原始信号波形.
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