反射系数满足分形条件下的反褶积  

Deconvolution in the case where reflection coefficient series satisfies fractal requirement

作　　者：李勤学[1] 张向君[1] 吴志强[1] 李清仁[1] 

机构地区：[1]大庆石油管理局物探公司研究所

出　　处：《石油地球物理勘探》1997年第1期98-103,共6页Oil Geophysical Prospecting

摘　　要：本文从分形理论出发，对地震反射系数序列进行了分形研究，得出反射系数的功率谱并不是白噪的，在多数情况下与频率的幂指数成正比关系，即具有分形特征。作者用反射系数序列具有分形特征取代反褶积中对反射系数功率谱为白噪的假设，提出了分形反褶积，并作了详细的方法原理论证。文中列举了理论和实际资料处理实例，其结果表明，分形反褶积能较好地改善反褶积的质量，提高地震记录的分辨率和信噪比。Fractal research on reflection coefficient series was done on the basis of fractaltheory- The research leads to the conclusion =the power spectrum of reflection coeffi-cient series is not white noise land it is directly proportional to the power of frequen-cy in most cases,that is to say,the reflection coefficient series has fractal property.Replacing the assumption that the power spectrum of the reflection coefficient seriesis white noise in deconvolution by the conception that reflection coefficient series isof fractal property.the authors advance fractal deconvolution,which is then dem0n-strated detailedly in principle. Theoretical and real examples are given here. The ex-amples show fractal deconvolution improves the quality of dec0nv0luti0n and bettersboth resolution and signal/noise ratio of seismic data.

关 键 词：分形 反射系数 功率谱 反褶积 地震勘探 

分 类 号：P631.41[天文地球—地质矿产勘探]