以二阶B -样条小波为分析小波 ,提出了一种提取分析化学中含噪声重叠峰位置的新方法———连续样条小波变换法 .在合适的尺度下 ,处理后的信号类似于信号的四阶导数 .结果表明 ,采用连续样条小波变换法能使峰变窄 ,并能提高信号的信噪比 ,同时还能从含噪声重叠信号中直接得到重叠峰的数目及其相应的峰位置 . Taking the second order B - spline wavelet as the analysis wavelet, a new method of extracting the overlapping position of the noise in the analytical chemistry is proposed, ie the continuous spline wavelet transform method. At a suitable scale, the processed signal is similar to The results show that the continuous spline wavelet transform method can make the peak narrower, and can improve the signal to noise ratio of the signal, but also directly from the noisy overlap signal to obtain the number of overlapping peaks and their corresponding Peak position.