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低频电流场逆问题的一种算法及模拟

An Algorithm and Simulation of the Inverse Problem of a Low-frequency Current Fild
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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)
关键词 生物医学电子学 电导率 阻抗成像 有限元素法 低频电流场逆问题 算法 模拟 biomedical electronics, electrical conductivity, impedance imaging, FEM
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参考文献2

  • 1刘菌,The Beijing International Symposium on Electromagnetic Fields Beijing China Oct,1988年
  • 2刘茵,1988年

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