世界地质 2017, 36(2) 602-608 DOI:   10.3969/j.issn.1004-5589.2017.02.027  ISSN: 1004-5589 CN: 22-1111/P

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本文关键词相关文章
逆时偏移
成像条件
照明补偿
波场分解
本文作者相关文章
PubMed
逆时偏移双向照明波场分离成像条件
张思萌, 韩立国, 于晨霞
吉林大学地球探测科学与技术学院, 长春 130026
摘要

通过对波场分离互相关成像条件与炮-检点双向照明互相关成像条件进行研究,将两种方法在噪声消除和补偿成像振幅畸变方面的优势进行结合,提高成像分辨率,改进现有成像条件。其主要步骤是将震源和检波点波场分离成它们的单程波传播分量,采用双向照明补偿互相关成像条件对需要的波场进行成像。通过对模型试算,验证了笔者提出的成像条件能有效的压制噪音,补偿成像振幅。

关键词 逆时偏移   成像条件   照明补偿   波场分解  
Decomposition imaging condition of reverse time migration bi-directional illumination wavefield
ZHANG Si-meng, HAN Li-guo, YU Chen-xia
College of Geo-exploration Science and Technology, Jilin University, Changchun 130026, China
Abstract:

Through the study of cross-correlation imaging conditions between wavefield decomposition and source-receiver bi-directional illumination, the authors combine the imaging advantages of two methods in the noise elimination and amplitude distortion compensation to increase the imaging resolution and improve the existing imaging conditions. The main procedures include separating source and receiver wave fields into one-way wave components and adopting bi-directional illumination compensation cross-correlation imaging condition to image the wavefields. Model trial validates that the imaging conditions proposed can effectively suppress noise and compensate imaging amplitude.

Keywords: reverse time migration   imaging condition   illumination compensation   wave field decomposition  
收稿日期 2016-08-22 修回日期 2016-12-24 网络版发布日期  
DOI: 10.3969/j.issn.1004-5589.2017.02.027
基金项目:

国家高新技术发展规划(863计划)重大项目课题(2014AA06A605).

通讯作者: 韩立国(1961),男,教授,博士生导师,主要从事地震数据处理解释研究.E-mail:hanliguo@jlu.edu.cn
作者简介:
作者Email: hanliguo@jlu.edu.cn

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