GPR velocity determination by image-wave remigration

被引：20
|
作者：
Novais, Amelia [2 ]
Costa, Jesse [1 ]
Schleicher, Joerg [2 ]
机构：
[1] Fed Univ Para, Dept Geophys, BR-66017970 Belem, Para, Brazil
[2] Univ Estadual Campinas, Dept Appl Math, BR-13083859 Campinas, SP, Brazil
来源：
JOURNAL OF APPLIED GEOPHYSICS | 2008年 / 65卷 / 02期
基金：
巴西圣保罗研究基金会;
关键词：
GPR imaging; velocity continuation; velocity analysis;
D O I：
10.1016/j.jappgeo.2008.05.001
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
We have studied in detail the theoretical and numerical properties of a finite-difference algorithm for image-wave time-remigration. For a number of synthetic models, numerical experiments have been performed. For these examples, we obtained perfect agreement between the theoretical predictions and numerical results. The examples also prove the computational efficiency of the algorithm. An application to ground-penetrating-radar (GPR) data demonstrates that image-wave remigration can be used to estimate models with laterally varying velocities. The quality of the latter is confirmed by a final zero-offset time migration. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：65 / 72
页数：8
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