| 利用BRIR提取脑电信号基本节律特征及其虚拟仪器系统 |
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| 引用本文： | 季忠,秦树人.利用BRIR提取脑电信号基本节律特征及其虚拟仪器系统[J].上海交通大学学报,2003,37(9):1464-1467. |
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| 作者姓名： | 季忠 秦树人 |
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| 作者单位： | 重庆大学,测试中心,重庆,400044 |
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| 摘 要： | 研制了一种“虚拟式脑电记录分析仪”，不仅可以实现脑电信号的无纸描记、记录和显示，而且可以对脑电信号进行定量分析，进行脑电特征波形(如癫痫样波、棘波等)提取和时频域特征分析，从临床应用的角度出发，该仪器引入了频带相对强度比(BRIR)的概念，利用时频分析方法，可以获得某一时刻各个基本节律的相对强度，从而为医生临床诊断提供了一种较好的辅助分析工具。
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| 关 键 词： | 脑电信号 基本节律 频带相对强度比 时频分析方法 |
| 文章编号： | 1006-2467(2003)10-1464-04 |
| 修稿时间： | 2002年10月9日 |
Feature of Electroencephalogram (EEG) Basic Rhythms Detected by Band Relative Intensity Ratio (BRIR) and the Instrument System |
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| JI Zhong,QIN Shu-ren.Feature of Electroencephalogram (EEG) Basic Rhythms Detected by Band Relative Intensity Ratio (BRIR) and the Instrument System[J].Journal of Shanghai Jiaotong University,2003,37(9):1464-1467. |
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| Authors: | JI Zhong QIN Shu-ren |
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| Abstract: | A virtual electroencephalogram (EEG) recording and analysis instrument was introduced which can not only realize no paper tracing, record and play, but also provide quantitative EEG analysis. All kinds of characteristic waveforms in EEG signals (e. g. epileptic wave and spikes wave etc. ) can be detected and analyzed in the time-frequency domain. From the view of clinical application, the concept of band relative intensity ratio (BRIR) was introduced in the course of studying for the instrument and by time-frequency analysis methods, the relative intensity of all basic rhythms at some time can be obtained, which provides a better assistant analysis method. |
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| Keywords: | electroencephalogram (EEG) basic rhythms band relative intensity ratio (BRIR) time-frequency analysis methods |
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