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提出了一种利用多重网格方法快速求解正问题，脉冲谱技术求解反问题，有限元技巧避开Ｇｒｅｅｎ函数计算的分层反演弹性参数的选代算法。数值算例表明，此种反演技术是十分有效的。
This paper presents an alternative algorithm for solving the stratified inversion elastic parameters by using the multiple grid method to solve the positive problem quickly, the pulse spectrum technique to solve the inverse problem and the finite element method to avoid the Green function. Numerical examples show that this inversion technique is very effective.