先对一般的时频分析法进行了介绍，在此基础上将小波分解法应用到信号的消噪中，相比傅利叶消噪具有明显优势。
First introduces the time-frequency analysis method , On the basis of this method , apply the wavelet decomposition method into the signal de-noising , Compared with the Fourier and wavelet decomposition , the later has obvious advantages .
中傅