Making True Amplitude Angle Domain Common Image Gathers Using Invertible Radon Transform

作     者：Hongwei Liu Yi Luo 

作者机构：EXPEC Advanced Research CenterSaudi Arabia 

出 版 物：《Communications in Computational Physics》 (计算物理通讯（英文）)

年 卷 期：2020年第28卷第6期

页      面：128-140页

核心收录：

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

基　　金：Saudi Aramco 

主　　题：True amplitude ADCIG reverse time migration invertible Radon transform 

摘      要：Converting subsurface offset domain common image gathers(ODCIGs)to angle domain common image gathers(ADCIGs)through a Radon Transform(RT)in either the spatial or wavenumber domain is efficient and valid except for the distortion of both frequency spectrum and amplitude versus angle(AVA)*** paper presents two modifications to the existing method to keep the frequency spectrum of the resultant ADCIGs the same as the input data and to preserve the relative *** spectrum invariance is achieved by replacing the conventional RT or slant slack by an invertible *** preservation is obtained by applying an amplitude correction factor in the angle *** on both synthetic and field datasets validate the accuracy of these modifications.