摘要
用广义增量线性函数的理论,结合有限元法,提出了一种解低频电流场逆问题的新 方法。通过计算机模拟和实验室模拟验证了此算法有唯一解且收敛性好。
Applying the theory of generalized incremental linear function, combining with the finite element method, a new algorithm is presented. This study obtains the direct relationship between measurements on boundary and conductivities within region in solving the inverse problem of a lowfrequency current field, so conductivity variations in depth region, i. e., the unique solution can be found. The convergence is achieved quickly. A variety of regions in which conductivities vary in different patterns was calculated in computer simulation and phantom experiments.
出处
《清华大学学报(自然科学版)》
EI
CAS
CSCD
北大核心
1990年第1期11-17,共7页
Journal of Tsinghua University(Science and Technology)