Wavelet packet de-noising based on several thresholds
Xiaoxia Guo, Huizhong Yang · 2008
Several thresholds were used in wavelet packet shrinkage, and according to the feature that the wavelet coefficients of signals and noises on each scale had different characteristic, SURE threshold, Bayesian threshold, fixed form threshold and the moving minimax threshold were combined during wavelet packet threshold de-noising. Simulation results show that the proposed method indeed has better de-noising effect.