地震学报（英文版）
地震學報（英文版）
지진학보（영문판）
ACTA SEISMOLOGICA SINICA
2004年
z1期
117-122
,共6页
谢周敏%王恩福%张国宏%赵国存%陈旭庚
謝週敏%王恩福%張國宏%趙國存%陳旭庚
사주민%왕은복%장국굉%조국존%진욱경
dual-tree complex wavelet packet transform%instantaneous characteristics%seismic signal analysis
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.
