瞬时偏振滤波技术压制X分量中的面波(英文)
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摘要
瑞雷面波与体波在偏振上的差异使得利用偏振特征分离这两种波场成为可能。为克服滑动时窗法在应用中存在的一些问题,本文将工程地震和天然地震信号分析中的复数道技术与瞬时偏振分析技术引进到能源领域多分量地震勘探转换波记录中的面波压制处理。理论模拟与野外实测数据的处理试验显示了较好的压制面波、保留有效信号的去噪效果,证明了该技术值得在多分量数据处理中推广应用。
The different characteristics of polarization of body and Rayleigh waves make it possible to separate these two types of waves by their characteristics and suppress the latter.The moving time-window analysis often is used in polarization filtering but it is difficult to determine a suitable time-window length,resulting in some problems,such as complex eigenvalues and non-convergence.For overcoming these disadvantages,in this paper,we introduce the concept of complex-trace analysis and conduct de-noise processing to suppress undesirable surface waves by instantaneous polarization analysis in the case of horizontal and vertical component seismic recordings from the Hauinan coal mine.The performance of the method is illustrated by examples with synthetic and field data and its effectiveness to remove surface waves from multi-component seismic data is demonstrated.
The different characteristics of polarization of body and Rayleigh waves make it possible to separate these two types of waves by their characteristics and suppress the latter.The moving time-window analysis often is used in polarization filtering but it is difficult to determine a suitable time-window length,resulting in some problems,such as complex eigenvalues and non-convergence.For overcoming these disadvantages,in this paper,we introduce the concept of complex-trace analysis and conduct de-noise processing to suppress undesirable surface waves by instantaneous polarization analysis in the case of horizontal and vertical component seismic recordings from the Hauinan coal mine.The performance of the method is illustrated by examples with synthetic and field data and its effectiveness to remove surface waves from multi-component seismic data is demonstrated.
引文
Bataille,K.,and Chiu,J. M.,1991,Polarization analysis of high frequency,three component seismic data: Bull. Seis. Soc. Am.,81,622 - 642.
Benhama,A.,Cliet,C.,and Dubesset,1988,Study and applications of spatial directional filtering in three-component recordings: Geophysical Prospecting,36,591 - 613.
Chen,Y.,Zhang,Z. J.,and Tian,X. B.,2005,Complex polarization analysis based on windowed Hilbert transform and its application: Chinese J. Geophys. (in Chinese),48(4),889 - 895.
Cho,W. H.,1991,Decomposition of vector wavefield data: PhD Thesis,Texas A&M University.
Cho,W. H.,and Spencer,T. W.,1992,Estimation of polarization and slowness in mixed wavefields: Geophysics,57,805 - 814.
Franco,R.,and Musacchio,G.,2001,Polarization filterwith singular value decomposition: Geophysics,66(3)932 - 938.
Goebel,V.,1984,Polarization and ground roll suppression: 54th Ann. Internat. Mtg.,Soc. Explor. Geophys.,Expanded Abstracts.
Greenhalgh,S. A.,Mason,I. M.,Mosher,C. C.,and Lucas,E.,1990,Seismic wavefield separation by multi-component tau-p polarisation filtering: Tectonophysics,173,53 - 61.
Hendrick,N.,and Hearn,S.,1999,Polarization analysis: What is it Why do you need it How do you do it: Exploration Geophysics,30,177 - 190.
Jurkevics,A.,1988,Polarization analysis of three-component array data: Bull. Seism. Soc. Am.,78(5),1725 - 1743.
Knopoff,L.,1964,A matrix method for elastic wave problems: Bull. Seism. Soc. Am.,54,431 - 438.
Li,J. F.,Li,R. H.,and Wang,W. D.,1998,Study on the extraction of effective wave using analytic signal method in multi-component Rayleigh wave Exploration: Coal Geology & Exploration (in Chinese),26(2),61 - 64.
Lu,J.,Wang,Y.,and Shi,Y.,2006,The best receivingwindow for acquisition of multi-component convertedseismic data in VTI media: Chinese J. Geophys. (inChinese),49(1),234 - 243.
Morozov,L. B.,and Smithson,S. B.,1996,Instantaneous polarization attributes and directional filtering: Geophysics,61(3),872 - 881.
Perelberg,A. I.,and Hornbostel,S. C.,1994,Applications of seismic polarization analysis: Geophysics,59(1),119 - 130.
Rene,R. M.,Fitter,J. L.,Forsyth,P. M.,et. al.,1986,Multi-component seismic studies using complex trace analysis: Geophysics,51(6),1235 - 1251.
Saatcilan,R.,and Canitez,N.,1988,A method of ground roll elimination: Geophysics,53,894 - 902.
Schwab,F.,and Knopoff,L.,1970,Surface-wave dispersion computations: Bull. Seism. Soc. Am.,60,321 - 344.
Shimshoni,M.,and Smith,S. W.,1964,Seismic signal enhancement with three-component detectors: Geophysics,29,664 - 671.
Smith,B. D.,and Ward,S. H.,1974,On the computation of the polarization ellipse parameters: Geophysics,39,867 - 869.
Taner,M. T.,Koehler,F.,and Sheriff,R. E.,1979,Complex seismic trace analysis: Geophysics,44,1041 - 1063.
Wang,J.,and Teng,T.,1997,Identification and picking of S phase using an artificial neural network: Bull. Seis. Soc. Am.,87,1140 - 1149.
Wang,Y.,Lu,J.,Shi,Y.,et.al,2009,PS-wave Q estimation based on the P-wave Q values: J. Geophys. Eng.,6,386 - 389.
White,J. E.,1964,Motion product seismograms: Geophysics,29,288 - 298.
Benhama,A.,Cliet,C.,and Dubesset,1988,Study and applications of spatial directional filtering in three-component recordings: Geophysical Prospecting,36,591 - 613.
Chen,Y.,Zhang,Z. J.,and Tian,X. B.,2005,Complex polarization analysis based on windowed Hilbert transform and its application: Chinese J. Geophys. (in Chinese),48(4),889 - 895.
Cho,W. H.,1991,Decomposition of vector wavefield data: PhD Thesis,Texas A&M University.
Cho,W. H.,and Spencer,T. W.,1992,Estimation of polarization and slowness in mixed wavefields: Geophysics,57,805 - 814.
Franco,R.,and Musacchio,G.,2001,Polarization filterwith singular value decomposition: Geophysics,66(3)932 - 938.
Goebel,V.,1984,Polarization and ground roll suppression: 54th Ann. Internat. Mtg.,Soc. Explor. Geophys.,Expanded Abstracts.
Greenhalgh,S. A.,Mason,I. M.,Mosher,C. C.,and Lucas,E.,1990,Seismic wavefield separation by multi-component tau-p polarisation filtering: Tectonophysics,173,53 - 61.
Hendrick,N.,and Hearn,S.,1999,Polarization analysis: What is it Why do you need it How do you do it: Exploration Geophysics,30,177 - 190.
Jurkevics,A.,1988,Polarization analysis of three-component array data: Bull. Seism. Soc. Am.,78(5),1725 - 1743.
Knopoff,L.,1964,A matrix method for elastic wave problems: Bull. Seism. Soc. Am.,54,431 - 438.
Li,J. F.,Li,R. H.,and Wang,W. D.,1998,Study on the extraction of effective wave using analytic signal method in multi-component Rayleigh wave Exploration: Coal Geology & Exploration (in Chinese),26(2),61 - 64.
Lu,J.,Wang,Y.,and Shi,Y.,2006,The best receivingwindow for acquisition of multi-component convertedseismic data in VTI media: Chinese J. Geophys. (inChinese),49(1),234 - 243.
Morozov,L. B.,and Smithson,S. B.,1996,Instantaneous polarization attributes and directional filtering: Geophysics,61(3),872 - 881.
Perelberg,A. I.,and Hornbostel,S. C.,1994,Applications of seismic polarization analysis: Geophysics,59(1),119 - 130.
Rene,R. M.,Fitter,J. L.,Forsyth,P. M.,et. al.,1986,Multi-component seismic studies using complex trace analysis: Geophysics,51(6),1235 - 1251.
Saatcilan,R.,and Canitez,N.,1988,A method of ground roll elimination: Geophysics,53,894 - 902.
Schwab,F.,and Knopoff,L.,1970,Surface-wave dispersion computations: Bull. Seism. Soc. Am.,60,321 - 344.
Shimshoni,M.,and Smith,S. W.,1964,Seismic signal enhancement with three-component detectors: Geophysics,29,664 - 671.
Smith,B. D.,and Ward,S. H.,1974,On the computation of the polarization ellipse parameters: Geophysics,39,867 - 869.
Taner,M. T.,Koehler,F.,and Sheriff,R. E.,1979,Complex seismic trace analysis: Geophysics,44,1041 - 1063.
Wang,J.,and Teng,T.,1997,Identification and picking of S phase using an artificial neural network: Bull. Seis. Soc. Am.,87,1140 - 1149.
Wang,Y.,Lu,J.,Shi,Y.,et.al,2009,PS-wave Q estimation based on the P-wave Q values: J. Geophys. Eng.,6,386 - 389.
White,J. E.,1964,Motion product seismograms: Geophysics,29,288 - 298.
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