CAJ | 학술논문

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。
분석료뇌전신호작위생물전신호적특정，병근거저사독유적특정제출료대채집뇌전신호적계통적성능요구，종이규화출정체적설계광도。계통구유고수입조항、고공모억제비적등특점，병차구유량호적실시성화통용성。기중，신호채집부분시장전겁기록적뇌전신호진행삼급적방대화려파，최종장차신호전송지모수전환모괴。
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.