利用小波分析技术提取诱发电位的方法研究

Identification of Evoked Potentials with Wavelet Analysis Method

本文利用小波分析技术对诱发电位的提取进行了探讨。选用基于三次Ｂ样条的正交小波构造共轭滤波器函数，将诱发信号分解在不同的尺度上，将特定尺度上的信号按时变加权原则叠加后获取诱发信号。计算机仿真与人体实验表明该方法在减少刺激次数，提高信噪比方面有着明显的效果。

Wavelet analysis method is presented for the identification of evoked potentials (EP). With the aid of cubic splines, we constructed the orthogonal bandpass function, decomposed the EP signals into different scales and then processed them. Experiments on human subjects have indicated that this method is useful and valuable.