| 视觉诱发电位的自适应处理 |
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| 引用本文： | 邱伟,徐秉铮,陈和晏.视觉诱发电位的自适应处理[J].华南理工大学学报(自然科学版),1996(4). |
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| 作者姓名： | 邱伟 徐秉铮 陈和晏 |
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| 作者单位： | 华南理工大学无线电与自动控制研究所 香港大学电机电子工程系 |
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| 摘 要： | 本文介绍了一种利用自适应信号增强技术检测并跟踪视觉诱发电位的新方法，自适应信号增强器有两个输人端，其主通道输人为带噪声的原始记录；参考输人需经设计使系统产生最佳性能，我们用移动窗口平均法形成动态参考输人，使系统具备较好的跟踪能力实验表明，利用这种方法可以检测到单一记录的视觉诱发电位信号，并能获得信号随时间变化的轨迹。
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| 关 键 词： | 自适应信号增强 视觉诱发电位 移动窗口平均 信号跟踪 |
ADAPTIVE PROCESSING OF VISUAL EVOKED POTENTIAL |
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| Qiu Wei,Xu Bingzheng,F. H.Y Chan.ADAPTIVE PROCESSING OF VISUAL EVOKED POTENTIAL[J].Journal of South China University of Technology(Natural Science Edition),1996(4). |
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| Authors: | Qiu Wei Xu Bingzheng F HY Chan |
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| Abstract: | The present paper describes an adaptive signal enhancer (ASE) which is capable of tracking the variation of visual evoked potential(VEP) from trial to trial as wellas improving signal4-to-noise ratio (SNR). This ASE requires two inputs: a primaryinput which is the raw noise corrupted response, and a reference input, which is designedfor an optimal performance of ASE. We used moving window averaging to form thedynamic reference input. Experimental results in human show a satisfactory performanceof the ASE in determining VEP to single stimulus and in tracking the temporal changesof the signal. |
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| Keywords: | s:adaptive signal enhancement visual evoked potential moving window averaging tracking capability |
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