Seismic sequence analysis and attribute extraction using quadratic time‐frequency representations
Seismic sequence analysis and attribute extraction using quadratic time‐frequency representations
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DOI：
10.1190/1.1487136
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发表时间：
2001-11
期刊：
影响因子：
3.3
通讯作者：
P. Steeghs;G. Drijkoningen
中科院分区：
文献类型：
--
作者：
P. Steeghs;G. Drijkoningen
地震道的频率内容随时间的变化携带了有关地下反射率序列特性的信息。因此，根据局部频率内容对数据进行分析可以为地震地层解释中使用的标准程序提供有价值的补充。二次时频表示理论为地震数据局部频率分析和地震属性提取提供了坚实的基础。演示了二次时频表示的两种应用：地震序列分析和地震属性提取。地震反射模式的联合时频表示通常比单独的时域或频域描述更容易根据地下分层来解释。我们展示了如何根据信号的时频特性使用时频表示来描绘地震序列。存在着密切的关系...
The variation of frequency content of a seismic trace with time carries information about the properties of the subsurface reflectivity sequence. As a result, analysis of the data in terms of the local frequency content can provide a worthwhile addition to the standard procedures that are used in seismo‐stratigraphic interpretation. The theory of quadratic time‐frequency representations provides a solid foundation for local frequency analysis of seismic data and seismic attribute extraction. Two applications of the quadratic time‐frequency representations are demonstrated: seismic sequence analysis and seismic attribute extraction. The joint time‐frequency representation of a seismic reflection pattern is often much more easily interpreted in terms of subsurface stratification than the time‐or frequency‐domain description alone. We show how the time‐frequency representation can be used to delineate seismic sequences on the basis of the time‐frequency characteristics of the signal. There exists a close rel...