物探与化探Issue(3)：571-576,6.DOI:10.11720/wtyht.2014.3.27
双复杂介质条件下的反Q滤波偏移延拓算子研究
A study of inverse Q continuation operator in dual complexity media
摘要
Abstract
Inelastic attenuation characteristics of the layers cause the narrowness of middle and deep signal band, weakness of energy, and difficulty of imaging. It is therefore necessary to compensate the inelastic attenuation of the layers. Based on one-way wave equa-tion, the authors use the complex velocity including quality factor and frequency substitutes for real velocity. Then through expansion viscous continuation operators using continued fraction in F-X domain, the authors obtain phase and compensate term, correct the error caused by continued fraction in F-K domain, and use gradually accumulate method to solve the irregular surface problem. This method could improve the imaging accuracy and compensate the amplitude and frequency attenuation effectively. Model trial and real data pro-cessing show that this method has certain adaptability and practicability.关键词
非弹性吸收/品质因子/复速度/双复杂介质/反Q滤波偏移Key words
inelastic attenuation/quality factor/complex velocity/dual-complexity media/inverse Q migration分类
天文与地球科学引用本文复制引用
郭恺,娄婷婷..双复杂介质条件下的反Q滤波偏移延拓算子研究[J].物探与化探,2014,(3):571-576,6.基金项目
国家863项目 （）
