The signals are only decomposed into one multiresolution level, and then the detail coefficients and the approximation coefficients are modified via soft thresholding and inversely synthesized.

• 它只需把信号分解一层，然后把分解后的高频系数和低频系数同时进行软阈值量化处理，再进行小波重构，就可以有效地消除信号中的噪声。