道均衡抛物线Radon变换法地震道重建  

Seismic trace reconstruction by trace equalization parabolic Radon transform.

作　　者：王维红[1] 高红伟[2] 刘洪[2] 

机构地区：[1]北京朝阳区德外祁家豁子中国科学院地质与地球物理研究所9825号油储组,100029 [2]中国科学院地质与地球物理研究所

出　　处：《石油地球物理勘探》2005年第5期518-522,560,共6页Oil Geophysical Prospecting

基　　金：中国科学院知识创新工程项目(KZCX1-SW-18)资助。

摘　　要：基于抛物线Radon变换地震道重建(PRT)的基本原理和傅里叶变换频谱的基本性质,本文提出了迭代加道均衡抛物线Radon变换(BPRT)方法,把道均衡技术和带限PRT法有机地结合起来,不仅大大提高了缺失地震道插值重建的计算效率,而且成功运用于叠前地震资料的反假频重采样处理中。此法与传统最小二乘抛物线Radon变换法相比,其计算精度相同,且计算效率大约提高了5倍。理论模型试算与实际地震资料处理证明该方法具有精度高、效率高的特点。Based on the basic principle of seismic trace reconstruction by parabolic Radon transform (PRT) and basic nature of Fourier transform spectrum, the paper presented iteration plus trace e- qualization parabolic Radon transform method that combines the trace equalization technique with band-limited PRT method, which not only greatly improves computational efficiency of interpolation reconstruction of missing seismic trace,but also is successfully used for anti-alias re-sampling processing in prestack seismic data. In comparison with traditional least square parabolic Radon transform, the method has equal computational precision but the efficiency increases by a factor of about 5. The theoretical model test and real seismic data processing showed that the method is characteristic of high precision and high efficiency.

关 键 词：抛物线Radon变换(PRT) 迭代 道均衡 地震道重建 快速算法 抛物线Radon变换 地震道插值 变换法 叠前地震资料 地震资料处理 

分 类 号：P631.443[天文地球—地质矿产勘探] TP301.1[天文地球—地质学]