摘要
介绍三种理论与实际效果比较好的波阻抗反演方法,即宽带约束反演(BCI)、快速模拟退火算法(FSA)和正则化方法。BCI是一种线性迭代方法,FSA是一种具有全局寻优特点的随机搜索方法,正则化方法是通过对目标函数施加先验约束,来解决反演的病态问题———多解性和不稳定性。最后,使用正则化方法并结合快速模拟退火算法,进行了理论模型试算和实际资料处理,实用效果比较好。
We introduce three impedance inverse methods which are good in theory and practice; broad-band constrained inversion (BCI), fast simulated annealing algorithms (FSA) and regularization. BCI is a linear iterative method, FSA is a random searching method with global optimization, and regularization can solve illposed inverse problem by prior term, including multi-result and instability. Finally, we combine the regularization and the fast simulated annealing algorithms. Througn the tests of theoretic model and inversion of the field data, we get good effects.
出处
《水文地质工程地质》
CAS
CSCD
北大核心
2005年第5期80-83,共4页
Hydrogeology & Engineering Geology
基金
河海大学科技创新基金资助项目(2004400711)