Direct collocation method for identifying the initial conditions in the inverse wave problem using radial basis functions
Direct collocation method for identifying the initial conditions in the inverse wave problem using radial basis functions
复制标题
使用径向基函数识别反波问题初始条件的直接配置方法
DOI:
10.1080/17415977.2018.1428968
复制
发表时间:
2018-01
影响因子:
1.3
通讯作者:
Zhou Y
中科院分区:
文献类型:
--
作者:
Wang L;Wang Z;Qian Z;Gao Y;Zhou Y
ABSTRACT A direct collocation method associated with explicit time integration using radial basis functions is proposed for identifying the initial conditions in the inverse problem of wave propagation. Optimum weights for the boundary conditions and additional condition are derived based on Lagrange’s multiplier method to achieve the prime convergence. Tikhonov regularization is introduced to improve the stability for the ill-posed system resulting from the noise, and the L-curve criterion is employed to select the optimum regularization parameter. No iteration scheme is required during the direct collocation computation which promotes the accuracy and stability for the solutions, while Galerkin-based methods demand the iteration procedure to deal with the inverse problems. High accuracy and good stability of the solution at very high noise level make this method a superior scheme for solving inverse problems.
登录
查看更多内容
影响因子:
1.3
作者:
Nakagawa, J.;Wang, Y. B.;Cheng, J.;Yamamoto, M.
通讯作者:
Yamamoto, M.
DOI:
10.3934/ipi.2016032
发表时间:
2016-02
期刊:
arXiv: Analysis of PDEs
影响因子:
--
作者:
M. Klibanov;L. Nguyen;A. Sullivan;Lam Nguyen
通讯作者:
M. Klibanov;L. Nguyen;A. Sullivan;Lam Nguyen
影响因子:
3.5
作者:
Lihua Wang;Z. Zhong
通讯作者:
Lihua Wang;Z. Zhong
影响因子:
3.3
作者:
Hon, YC;Wei, T
通讯作者:
Wei, T
DOI:
10.1137/06066970x
发表时间:
2007-11
期刊:
SIAM J. Sci. Comput.
影响因子:
--
作者:
Christian Clason;M. Klibanov
通讯作者:
Christian Clason;M. Klibanov