物探化探计算技术2016，Vol.38Issue(3)：403-409,7.DOI:10.3969/j.issn.1001-1749.2016.03.17
高斯束叠前深度偏移影响因素分析
The analysis on influence factors of imaging precision in Gaussian beam prestack depth migration
摘要
Abstract
Gaussian beam migration is an elegant and efficient depth migration method with accuracy comparable to wave-e-quation migration and efficiency and flexibility comparable to Kirchhoff migration.Gaussian beam migration imaging quality and computation efficiency is influenced by many factors.In this paper,based on Gaussian beam prestack depth migration algorithm of common-shot records in two-dimensional media,the influence mechanism of the initial beam width,imaging angle and veloci-ty smooth on effectiveness and efficiency of migration are studied.Finally,the effects of the initial beam width,imaging angle and velocity smooth on Gaussian beam prestack depth migration are studied by testing of sub-sag model,Marmousi model and Sigsbee 2B model.关键词
高斯束/叠前深度偏移/影响因素/数值模型分析Key words
Gaussian beam/prestack depth migration/influence factor/numerical model analysis分类
天文与地球科学引用本文复制引用
韩建光,张晓波,邢占涛,陈鹏,王赟,于常青..高斯束叠前深度偏移影响因素分析[J].物探化探计算技术,2016,38(3):403-409,7.基金项目
国家自然科学基金项目(41425017,41374131,41374128) （41425017,41374131,41374128）
科技部863课题(2013AA064201) （2013AA064201）
