混合Radon变换地震噪声压制的应用  

THE APPLICATION OF SEISMIC NOISE ATTENUATION BASED ON HYBRID RADON TRANSFORM

作　　者：鲁娥[1] 李庆春[2] 

机构地区：[1]长安大学公路学院,陕西西安710064 [2]长安大学地质工程与测绘学院,陕西西安710054

出　　处：《物探与化探》2013年第4期706-710,共5页Geophysical and Geochemical Exploration

摘　　要：如何有效地从地震资料中剔除相干噪声一直是地震勘探十分关心的问题,尤其是多次波的压制和消除。笔者采用相似函数压制端点效应和截断效应的混合Radon变换从地震剖面中一次性分离面波等线性噪声,再应用自适应滤波技术在Radon域识别并剔除多次波,并使用双曲Radon反变换计算获得有效反射地震信号。理论模型及实测资料试算结果表明,该方法对多次波压制效果良好,同时,应用混合Radon变换可简化数据中噪声压制处理流程。The effective removal of coherent noise from seismic data has become a problem of much concern. The authors used hybrid radon transform to separate linear noise from seismic section once for all, then eliminated multiple wave in radon domain using adaptive filtering technology and used the inverse hyperbolic radon transform to get the effective reflection seismic signal. Theoretical model and practical data test show that this technology is effective in multiple wave attenuation. Similar function was used to suppress the end effect and truncation effect. The＇actual calculation results is good and shows that hybrid radon transform can simplify noise suppressing of data processing.

关 键 词：混合Radon变换 面波压制 多次波压制 自适应滤波 相似函数 

分 类 号：P631.4[天文地球—地质矿产勘探]