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采用Daubechies正交小波滤波和样条卷积分峰联用方法对信噪比S/N≥ 2的含噪重叠双峰进行滤噪和分峰处理。滤波部分采用阈值法 ,较详细地探讨了阈值的选取规则 ;分峰部分利用样条卷积法 ,并给出了其算法公式。处理速度较快 ,算法也较简单。通过对模拟和实验信号的处理 ,发现该联用方法很有效 ,处理后的峰的峰位置误差≤ 3 0 % ,峰面积误差≤ 3 0 %
The Daubechies orthogonal wavelet filter and spline convolution integral peak method were used to filter and peak the noisy overlapping bimodal with signal to noise ratio S / N≥2. The filtering part adopts the threshold method to discuss the selection rules of the threshold in more detail. The spline convolution method is used in the peak division, and the algorithm formula is given. Processing speed, the algorithm is relatively simple. Through the processing of simulation and experiment signals, the combination method is found to be very effective. The peak position error of the treated peak is ≤30% and the peak area error is ≤30%