波动方程反演中边界条件下延拓的稳定性

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。%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.