通过对小波分解系数进行门限阈值处理 ,可以有效地抑制噪声 ,同时能够很好地提取目标信号。文章基于两种阈值选取准则 (CM与MM ) ,对小波变换在相位编码信号处理中的应用进行了仿真实验。仿真结果表明 ,该方法除对噪声具有很好的抑制作用外 ,还有效地保留了目标信号的波形特征

Via thresholding operation in wavelet domain, noise can be reduced, and at the s ame time target signal can be well extracted. This paper presents the simulation in extraction of target signal using wavelet transform based on two different t hresholding selection rules (CM and MM). It has been proved that the method not only suppresses noise effectively but also preserves as many features of target signal as possible.

TN957.51