摘要
对心电场逆问题,采用边界元法建立离散形式的传递方程。由于传递方程一般是超定的,且其正规方程严重病态,本文采用Tikhonov正则化方法,求逆问题的正则解。给出数值例子说明逆问题的一些现象和正则解的特征。
The transfer equation of inverse problem of cardiac electrical field is obtained using BEM. Tikhonov regularization is applied to solve the inverse problem since the transfer equation is in general over ?determined and its normal equation is ill-conditioned. Numerical results are given and discussed in detail.
出处
《生物医学工程学杂志》
EI
CAS
CSCD
北大核心
1994年第3期222-225,共4页
Journal of Biomedical Engineering
基金
国家自然科学基金:No.39070273
关键词
心电场
逆问题
正则解
边界元
Cardiac electrical field Inverse problem Regularization solution Boundary element method