FOCUS系统多道反褶积模块的改进

REVISION OF MULTICHANNEL DECONVOLUTION MODULE IN FOCUS SYSTEM

FOCUS地震资料处理系统的多道反褶积模块MCDECON在使用中常出现同相轴振幅突变问题,在水合物资料的处理中这一缺点显得更为突出。本文尝试从反褶积的原理出发,分析MCDECON模块的具体算法,寻找其子程序在处理死道计算中的错误并改进平均自相关算法,最终形成一个改进后的多道反褶积模块,获得了满意的结果。

The using of the multichannel deconvolution FOCUS module MCDECON often results in mutation of the event amplitude. This problem is bulqed in processing of the BSR seismic data. After analysis the theory of the deconvolution and the module MCDECON, we find the error of the subroutine in this module, correct the calculation of the average autocorrelation, and design a new multichannel modul. This method is proved quite feasible in seismic data processing.