The characteristics of different denoised signals were compared by the use of several index, such as SNR, RMSE and Lipschitz exponent, and the optimal parameters of wavelet denoiseing.

• 利用信噪比、均方根误差和李氏指数等指标作为评判标准，比较了不同去噪信号的特征，并确定了最佳的小波去噪参数。