诱发电位单次提取技术的研究进展

Progress in Single-trial Extraction of Evoked Potential

由于诱发电位信号的信噪比很小,因此诱发电位的稳健提取一直是脑电信号处理领域的难题之一。本文分别从时域、变换域和空域三方面综述了诱发电位的单次提取技术,具体方法有自适应滤波、小波分析、主成分分析、独立分量分析等。

The robust extracting of evoked potential （EP） has become a vexed question in the process of electroencephalogram owing to the faint signal-to-noise ratio of EP. This paper presents the single trial of EP in time, transform and space field. Several methods such as adaptive filter, wavelet transform, principal component analysis （PCA） and independent component analysis （ICA） have been applied to the process of EP.