• 责任者：Yue Yubo (College of Geo-Resources and Information ; China University of Petroleum ; Qingdao 266555 ; China) ; Li Zhenchun
• 刊名：Chinese Journal of Geophysics
• 出版年：2012
• 卷期：55(4)
• 关键词：叠前偏移 ; prestack migration
• 页码：p.1376-1383
• 图表：4 illus., 24 refs.
• 分类号：1600
• issnNo：ISSN0001-5733
• isbnNo：CN11-2074/P

Gaussian
    beam migration is an accurate, flexible and efficient depth migration method.
    It not only has the imaging accuracy approaching that of wave equation
    migration, but also retains many advantages of Kirchhoff migration, such as
    flexibility, efficiency and adaptability to complex topography. In this paper, we
    propose a Gaussian beam migration method which can easily accommodate complex
    topography and relatively preserve amplitude. By taking account of elevations, dip
    angles and actual trace intervals of topography, we derived an inverse
    wavefield extrapolation formula in terms of Gaussian beams, then combined it
    with deconvolution imaging conditions to obtain an amplitude-preserved shot
    domain Gaussian beam migration formula.