The WT coefficient disposed by the compromise of the hard and soft threshold method can reform its continuity on the threshold and guarantee the reconstituted single unable to surge, also can make the signal error smallest.

• 该方法将小波系数经过软硬阈值折衷法处理后，可以改善小波系数在阈值处的连续性，使重构信号不会振荡，又使变换后的重构信号与实际信号误差最小。