摘要
阐述了相干平均，加权平均和自适应傅立叶估计等三种提取诱发脑电技术的原理。通过仿真结果表明：１）相干平均技术简单明了，易于实现；２）加权平均技术减少了叠代次数，适用于背景噪声非稳定的情况；３）自适应傅立叶估计技术能用２Ｍ个参数来表示诱发脑电，并且能迅速跟踪诱发脑电的突变。最后，展望了诱发脑电提取技术的发展前景。
The principles of conventional average, weighted average, and adaptive Fourier estimation for estimating the Evoked Potential are discussed here. The computer simulating results show that: 1)The conventional average is simple and easy to be realized; 2)The weighted average technology is suitable for the situation that the background noise is non stationary,which can reduce the iterative times; 3)By the adaptive Fourier estimation technology , the Evoked Potential can be represented by 2 M parameters, and the mutation of EP can be traced in short time. Finally, the prospect of the techniques of estimating Evoked Potential is described.
出处
《桂林电子工业学院学报》
1998年第4期25-29,共5页
Journal of Guilin Institute of Electronic Technology
基金
广西留学回国基金
关键词
诱发脑电
相干平均
加权平均
ERP
提取技术
evoked potential, conventional average, weighted average, adaptive fourier estimation
