摘要
讨论了弹性水平层状介质中的反演问题．在平面脉冲波激励和反射模式下利用传递算子方法逐层反演了介质的Ｓ波速度，Ｐ波速度，Ｌａｍé弹性常数μ和厚度，并且进行了数值模拟，这种逐层反演方法简化了方程的阶数和计算量．
The inverse pro blem of wave propagation in horizo ntally stratified elastic medium i s discussed. The velocities of S and P wave, Lamé elastic consta nt μ and the thickness of each l ayer are inversed layer by layer b y using transfer operator techniqu e in the plane pulse wave source e xcitation in the reflectivity meth od. The numerical simulations are performed. The inverse method of l ayer by layer can lower the orders of equation and decrease calculati on quantity.
出处
《固体力学学报》
CAS
CSCD
北大核心
1999年第2期149-156,共8页
Chinese Journal of Solid Mechanics
基金
国家自然科学基金
关键词
弹性波
传递算子
反演
层状介质
elastic wave, t ransfer operator, inversion, strat ified medium
