Seismic signal analysis based on the dual-tree complex wavelet packet transform
Xie XIE, Zhou-min, Wang, En-fu, Zhang, Guohong, Zhao Zhao, Guo-cun, Chen, Xu-geng · 地震学报：英文版 · 2004
We tried to apply the dual-tree complex wavelet packet transform in seismic signal analysis. The complex waveletpacket transform (CWPT) combine the merits of real wavelet packet transform with that of complex continuouswavelet transform (CCWT). It can not only pick up the phase information of signal, but also produce better focalizing function if it matches the phase spectrum of signals analyzed. We here described the dual-tree CWPT algorithm, and gave the examples of simulation and actual seismic signals analysis. As shown by our results, thedual-tree CWPT is a very efecfive method in analyzing seismic signals with non-linear phase.