摘要
该系统(ME)将脑电的采集与处理集于微机系统,在实验中不仅能替代昂贵的专用信号处理机,而且为数据的进一步处理提供了较大的灵活性。ME 由长城0520C-H 微机加上其各种外设和脑电采集的一系列前置设备构成。该系统对四导脑电采样并做实时数字滤波和自功率谱分析,采样后立即做互功率谱分析,其结果用打印机数字输出、彩色显示器和绘图仪彩色图形输出及存盘。ME 的主要软件REEC、EECA 采用菜单技术,尽量完善能考虑到的各种选择。在软件的开发过程中都采用了自顶向下逐步求精、模块化的结构设计方法,因此可移植性和维护性较好。
A general microcomputer-based EEG signal acquisition and pro-cessing system (MEEG) was developed for brain activity study.ME can do realtime-processing of EEG (digital filtering andauto-powerspectra analysis) compute co-powerspectra,give printedrerult as well as color diagrams on high resolution screen or X-Yplotter,save results on disk.record EEG on tape recorder andprocess the tape recorded signals.Further processing and comput-ation may be conducted by programing on the microcomputer orapplying software packages available.In developing the softwareof ME,structure design methods and menu technique were em-ployed,resulting in a convenient man-machine interface and goodmaintainability.
出处
《航天医学与医学工程》
CAS
CSCD
1989年第4期285-289,共5页
Space Medicine & Medical Engineering
关键词
微机
脑电
信号采集
Microcomputer application
EEG
Signal acquisition
Digital signal processing
