吉林大学学报(理学版)

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波动方程反演中边界条件下延拓的稳定性

李岩波, 郭华   

  1. 吉林大学 数学学院, 长春 130012
  • 收稿日期:2013-12-31 出版日期:2014-07-26 发布日期:2014-09-26
  • 通讯作者: 郭华 E-mail:guohua@jlu.edu.cn

Stability of Downward Continuation of BoundaryConditions of Wave Equation Inversion

LI Yanbo, GUO Hua   

  1. College of Mathematics, Jilin University, Changchun 130012, China
  • Received:2013-12-31 Online:2014-07-26 Published:2014-09-26
  • Contact: GUO Hua E-mail:guohua@jlu.edu.cn

摘要:

通过建立弹性波动方程反演中边界条件下延拓的过渡矩阵, 得到了边界条件下延拓的求解方法及稳定性条件, 解决了弹性波动方程参数反演时延拓深度点上边界条件无法测定的问题, 从而提高了反演速度和精度.

关键词: 弹性波方程反演, 边界条件, 下延拓, 过渡矩阵, 稳定性

Abstract:

The transition matrix of the downward continuation of boundary conditions about elastic wave equation inversion was established. The solving method and stable conditions of the downward continuation of boundary conditions were obtained. The problem that the boundary conditions at downward continuation depth points cannot be determined has been solved so as to improve the speed and precision of inversion calculation.

Key words: inversion of elastic wave equation, boundary condition, down continuation, transition matrix, stability

中图分类号: 

  • O175.2