联合连续小波变换和脊波变换的面波衰减方法及应用
|
摘要
基于炮集地震记录面波的高振幅、低频率和低速度特性及其与反射波在小波域和脊波域中分布区域不同,提出了一种衰减强干扰面波的联合一维连续小波变换和脊波变换方法。首先根据面波的高振幅和低频率特性,利用一维连续小波变换的时频局部化性质,对强干扰面波进行衰减;然后利用脊波变换将地震记录变换到时间、尺度和射线参数的三维空间;最后在脊波域对剩余干扰进行衰减。合成记录和实际资料处理的应用表明该方法不仅可以较好地衰减地震记录中的干扰面波,而且可以保护有效信号的低频成分,为地震资料后续处理和分析提供更好的保证。
Based on the high amplitude,low frequency and low speed characteristics of ground-roll,and according to the distribution characteristic of ground-roll and reflection wave in wavelet domain and ridgelet domain,a ground-roll attenuation method joint one-dimensional continuous wavelet transform and ridgelet transform is proposed.Firstly,according to the low frequency and low speed characteristics of ground-roll,one-dimension continuous wavelet transform is used to attenuate high energy ground-roll based on its time-frequency localization properties.Then,ridgelet transform is applied to transform the seismic data to 3D space on time,scale and ray parameters.Finally,the residual ground-roll is attenuated in ridgelet domain.The processing results of synthetic and actual data show that the method is effective in attenuating ground-roll,and can preserve low frequency component of the reflection wave,which provides better foundation for continuous data processing and analysis.
Based on the high amplitude,low frequency and low speed characteristics of ground-roll,and according to the distribution characteristic of ground-roll and reflection wave in wavelet domain and ridgelet domain,a ground-roll attenuation method joint one-dimensional continuous wavelet transform and ridgelet transform is proposed.Firstly,according to the low frequency and low speed characteristics of ground-roll,one-dimension continuous wavelet transform is used to attenuate high energy ground-roll based on its time-frequency localization properties.Then,ridgelet transform is applied to transform the seismic data to 3D space on time,scale and ray parameters.Finally,the residual ground-roll is attenuated in ridgelet domain.The processing results of synthetic and actual data show that the method is effective in attenuating ground-roll,and can preserve low frequency component of the reflection wave,which provides better foundation for continuous data processing and analysis.
引文
[1]Liu X.Ground roll suppressing using the Karhunen-Loeve transform[J].Geophysics,1999,64(2 ): 564-566
Galbraith J N,Wiggins R A.Characteristics of optimum multi channel stacking filters[J].Geophysics, 1968,33(1):36-48
[3]刘法启,张关泉.小波变换与F-K算法在滤波中的应用[J].石油地球物理勘探,1996,31(6):782-791
[4]夏洪瑞,周开明.地震资料处理中相干干扰消除方法分析[J].石油物探,2003,42(4):102-104,125
[5]Montagne R,Vasconcelos G L.Optimized suppression of eohenrent noise from seismic data using the Karhunen-Loeve transform[J].Physical Review E, 2006,74(I):l-8
[6]陈遵德,段天友,朱广生.SVD滤波方法的改进及应用[J].石油地球物理勘探,1994,29(6):783-792
[7]罗国安,杜世通.小波变换及信号重建在压制面波中的应用[J].石油地球物理勘探,1996,31(3): 337-349
[8]Deighan A J,Watts D R.Ground-roll suppression using the wavelet transform[J].Geophysics,1997.62 (6):1896-1903
[9]Nguyen M,Mars J.filtering surface waves using 2D discrete wavelet transform[J].Expanded Abstracts of 69~(th) Annual Internal SEG Mtg,1999,1228-1231
[10]Zhang R F,Ulrych T J.Physical wavelet frame denoising [J].Geophysics,2003,68(1)-225-231
[11]Welford J K,Zhang R.Ground-roll suppression from deep crustal seismic reflection data using a waveletbased approach:a case study from western Canada [J].Geophysics,2004,69(4):877-884
[12]Zhang R F,Trad D,Ulrych T.Hybrid,wavelet transform based,noise attenuation[J].Integrated Computer-Aided Engineering,2005,12(1 ):91-98
[13]孙学文,陈文超,高静怀,等.小波域强面波衰减方法研究[J].石油地球物理勘探,2008,43(1):22-28
[14]陈文超,高静怀,包乾宗.基于连续小波变换的自适应面波压制方法[J].地球物理学报,2009,52(11): 2854-286 1
[15]包乾宗,高静怀,陈文超.面波压制的Ridgelet域方法[J].地球物理学报,2007,50(4):1210-1215
[16]Grossmann A,Kronland M R,Morlet J.Reading and understanding continuous wavelet transforms[C]// Combes J,Grossmann A,Tchamitchian P.Wavelets: time-frequency methods and phase space.Berlin, Germany:Springer-Verlag,1989:2-20
[17]杨福生.小波变换的工程分析与应用[M].北京:科学出版社,2001:1-271
[18]Candes E J.Ridgelet:theory and application[D]. California,USA:Stanford University,1998
[19]Candes E J.Ridgelets:a key to higher-dimensional intermittency[J].Philosophical Transactions of the royal society,1999,357(1760):2495-2509
[20]Buttkus B.Spectral analysis and filter theory in applied geophysics[M].Berlin,Germany:Springer-Verlag, 2000:1-682
[21]Karsli H,Bayrak Y.Using the Wiener-Levinson algorithm to suppress ground-roll[J].Journal of Applied Geophysics,2004,55(3-4):187-197
Galbraith J N,Wiggins R A.Characteristics of optimum multi channel stacking filters[J].Geophysics, 1968,33(1):36-48
[3]刘法启,张关泉.小波变换与F-K算法在滤波中的应用[J].石油地球物理勘探,1996,31(6):782-791
[4]夏洪瑞,周开明.地震资料处理中相干干扰消除方法分析[J].石油物探,2003,42(4):102-104,125
[5]Montagne R,Vasconcelos G L.Optimized suppression of eohenrent noise from seismic data using the Karhunen-Loeve transform[J].Physical Review E, 2006,74(I):l-8
[6]陈遵德,段天友,朱广生.SVD滤波方法的改进及应用[J].石油地球物理勘探,1994,29(6):783-792
[7]罗国安,杜世通.小波变换及信号重建在压制面波中的应用[J].石油地球物理勘探,1996,31(3): 337-349
[8]Deighan A J,Watts D R.Ground-roll suppression using the wavelet transform[J].Geophysics,1997.62 (6):1896-1903
[9]Nguyen M,Mars J.filtering surface waves using 2D discrete wavelet transform[J].Expanded Abstracts of 69~(th) Annual Internal SEG Mtg,1999,1228-1231
[10]Zhang R F,Ulrych T J.Physical wavelet frame denoising [J].Geophysics,2003,68(1)-225-231
[11]Welford J K,Zhang R.Ground-roll suppression from deep crustal seismic reflection data using a waveletbased approach:a case study from western Canada [J].Geophysics,2004,69(4):877-884
[12]Zhang R F,Trad D,Ulrych T.Hybrid,wavelet transform based,noise attenuation[J].Integrated Computer-Aided Engineering,2005,12(1 ):91-98
[13]孙学文,陈文超,高静怀,等.小波域强面波衰减方法研究[J].石油地球物理勘探,2008,43(1):22-28
[14]陈文超,高静怀,包乾宗.基于连续小波变换的自适应面波压制方法[J].地球物理学报,2009,52(11): 2854-286 1
[15]包乾宗,高静怀,陈文超.面波压制的Ridgelet域方法[J].地球物理学报,2007,50(4):1210-1215
[16]Grossmann A,Kronland M R,Morlet J.Reading and understanding continuous wavelet transforms[C]// Combes J,Grossmann A,Tchamitchian P.Wavelets: time-frequency methods and phase space.Berlin, Germany:Springer-Verlag,1989:2-20
[17]杨福生.小波变换的工程分析与应用[M].北京:科学出版社,2001:1-271
[18]Candes E J.Ridgelet:theory and application[D]. California,USA:Stanford University,1998
[19]Candes E J.Ridgelets:a key to higher-dimensional intermittency[J].Philosophical Transactions of the royal society,1999,357(1760):2495-2509
[20]Buttkus B.Spectral analysis and filter theory in applied geophysics[M].Berlin,Germany:Springer-Verlag, 2000:1-682
[21]Karsli H,Bayrak Y.Using the Wiener-Levinson algorithm to suppress ground-roll[J].Journal of Applied Geophysics,2004,55(3-4):187-197
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心