基于分形理论的地震数据分析
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摘要
根据地下结构的分形特征,采用分形理论中的计盒维数法的短时分维数方法,对地震数据进行了分析研究。该方法使用一短的时间窗沿地震道或其瞬时属性道滑动,计算每一窗的分维数,得到地震资料或其瞬时属性的维数道,并通过理论模型和实际地震资料的计算对该方法进行了验证。结果表明,该方法可以准确诊断地下结构的断层位置,是分析地下结构缺陷的一种非常有效的方法。
The short time fractal dimension of box counting dimension in fractal theory was applied to studying the seismic datum based on the fractal character of the stratum rhythm.The method was characterized by using the short time window glide along seismic trace or instantaneous attribute trace,and the fractal dimensions were gotten in each window.The calculated results of the theory model and practical seismic datum prove that the method can determine the underground breaking layer position,and it is a good method for studying the physical characteristics of seismic datum.9 figs,6 refs.
The short time fractal dimension of box counting dimension in fractal theory was applied to studying the seismic datum based on the fractal character of the stratum rhythm.The method was characterized by using the short time window glide along seismic trace or instantaneous attribute trace,and the fractal dimensions were gotten in each window.The calculated results of the theory model and practical seismic datum prove that the method can determine the underground breaking layer position,and it is a good method for studying the physical characteristics of seismic datum.9 figs,6 refs.
引文
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[2]Boschetti F,Dentith M D,List R D.A fractal-basedalgorithm for detecting first arrivals on seismic traces[J].Geophsics,1996,61(4):1095-1102.
[3]Kumar N S,Dewangan P.Detection of seismic reflectionsfrom seismic attributes through fractal analysis[J].Geophysical Prospecting,2002,50(3):341-360.
[4]Davidson K L,Loughlin P J.Instantaneous spectralmoments[J].Journal of the Franklin Institute,2000,(337):421-436.
[5]Mandel L.Interpretation of instantaneous frequency[J].AJP,1974,42(10):840-846.
[6]Mitza S,Sankan K P,Pabitra M A.Data mining insoft computing framework:a survey[J].IEEETransactions on Neural,2002,13(1):3-14.
[2]Boschetti F,Dentith M D,List R D.A fractal-basedalgorithm for detecting first arrivals on seismic traces[J].Geophsics,1996,61(4):1095-1102.
[3]Kumar N S,Dewangan P.Detection of seismic reflectionsfrom seismic attributes through fractal analysis[J].Geophysical Prospecting,2002,50(3):341-360.
[4]Davidson K L,Loughlin P J.Instantaneous spectralmoments[J].Journal of the Franklin Institute,2000,(337):421-436.
[5]Mandel L.Interpretation of instantaneous frequency[J].AJP,1974,42(10):840-846.
[6]Mitza S,Sankan K P,Pabitra M A.Data mining insoft computing framework:a survey[J].IEEETransactions on Neural,2002,13(1):3-14.
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