摘要
采用第二特征值与第一特征值的比值算法对地震数据进行分析,并与基于特征结构的相干估计算法进行比较.结果表明,第二特征值与第一特征值的比值算法,比基于特征结构的相干估计算法具有较高的分辨率和较好的抑制噪声作用.
The seismic data are analyzed using the algorithm of the ratio between the second and first eigenvalue.The algorithm is compared with the coherence estimation based on an eigen structural approach,the results showed the algorithm of the ratio between the second and first eigenvalue have high resolution and obvious inhibition to the noise.
引文
[1]Kurt J,Marfurt,Lynn Kirlin R,et al.3-D seismicattributes using a semblance-based coherency algorithm[J].Geophysics,1998,63(4):1 150-1 165.
[2]Bahorich M S,Farmer S L.3-D seismic discontinuity forfaults and stratigraphic features[J].The leading Edge,1995(14):1 053-1 058.
[3]Israel Cohen,Ronald R.Coifman.Local discontinuitymeasures for 3-D seismic data[J].Geophysics,2002,67(6):1 993-1 945.
[4]Kurt J,Marfurt V,Sudhaker,et al.Coherencycalculations in the presence of structural dip[J].Geophysics,1999,64(1):104-111.
[5]Gersztenkorn A,Marfurt K J.Eigenstructure-basedcoherence computations as an aid to 3-D structural andstratigraphic mapping[J].Geophysics,1999,64(5):1 468-1 479.
[6]Mallat S.Zerocrossings of a wavelet transform[J].IEEETrans on Information Theory,1991,37(4):1 019-1 033.