| Seismic signal analysis based on the dual-tree complex wavelet packet transform |
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| 作者姓名： | 谢周敏 王恩福 张国宏 赵国存 陈旭庚 |
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| 作者单位： | Institute of Crustal Dynamics，China Earthquake Administration，Beijing 100085，China，Institute of Crustal Dynamics，China Earthquake Administration，Beijing 100085，China，Institute of Crustal Dynamics，China Earthquake Administration，Beijing 100085，China，Institute of Crustal Dynamics，China Earthquake Administration，Beijing 100085，China，Institute of Crustal Dynamics，China Earthquake Administration，Beijing 100085，China |
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| 基金项目： | CulturalHeritage Protection Program of State Administration of CulturalHeritage (200001). |
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| 摘 要： |
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Seismic signal analysis based on the dual-tree complex wavelet packet transform |
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| XIE Zhou-min WANG En-fu ZHANG Guo-hong ZHAO Guo-cun CHEN Xu-geng Institute of Crustal Dynamics,China Earthquake Administration,Beijing ,China.Seismic signal analysis based on the dual-tree complex wavelet packet transform[J].Acta Seismologica Sinica(English Edition),2004,17(Z1). |
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| Authors: | XIE Zhou-min WANG En-fu ZHANG Guo-hong ZHAO Guo-cun CHEN Xu-geng Institute of Crustal Dynamics China Earthquake Administration Beijing China |
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| Institution: | Institute of Crustal Dynamics, China Earthquake Administration, Beijing 100085, China |
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| Abstract: | 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. |
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| Keywords: | dual-tree complex wavelet packet transform instantaneous characteristics seismicsignalanalysis |
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