针对小波变换在信号处理中的不足，提出了 双树复小波变换的方法信号进行处理，特别是对心电和脑电信号的去躁处理，最后和小波变换比较。(In view of the deficiency of wavelet transform in signal processing, a dual tree complex wavelet transform method is proposed to deal with the signal, especially for the ECG and EEG signals. Finally, the wavelet transform is compared with the wavelet transform.)