| 采用微机的多路脑电功率谱分析系统 |
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| 引用本文： | 邹廉强,唐仲良.采用微机的多路脑电功率谱分析系统[J].复旦学报(自然科学版),1988(4). |
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| 作者姓名： | 邹廉强 唐仲良 |
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| 作者单位： | 复旦大学生理学与生物物理学系，复旦大学生理学与生物物理学系 1985届本科毕业生 |
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| 摘 要： | 采用IBM-PO机作多路脑电功率谱分析系统,无需对微机作任何改动,只要将一块简单的数据获取接口板插入微机的I/O扩展槽中即可,该系统能采集和分析8路脑电,谱线分辨率为0.25Hz,频谱分析范围0～63.75Hz(加数字滤波后为0～43Hz),是一理想的常规脑电研究工具。
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| 关 键 词： | 功率谱分析 脑电信号 低通FTR滤波器 海明窗 傅立叶快速转换。 |
A MULTICHANNEL SYSTEM OF POWER SPECTRAL ANALYSIS OF EEG SIGNAL BY MICROCOMPUTER |
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| Zou Lianqiang,Tang Zhongliang,.A MULTICHANNEL SYSTEM OF POWER SPECTRAL ANALYSIS OF EEG SIGNAL BY MICROCOMPUTER[J].Journal of Fudan University(Natural Science),1988(4). |
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| Authors: | Zou Lianqiang Tang Zhongliang |
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| Institution: | Department of Physiology and Biophysics |
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| Abstract: | A multichannel system of power spectral analysis of EEG signal by means ofIBM-PC with a sampling frequency of 128 Hz and a resolution of 0.25 Hz is descri-bed. The system program which includes a 23rd order 43 Hz low-pass FIR filtertreated with Hamming Window and a kind of averaging method of smoothing perio-dogram using 50% overlapping data segments and Hamming window for FFT hasbeen developed. |
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| Keywords: | power spectral analysis EEG signal low-pass FIR filter Hamming window FFT |
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