| 低频电流场逆问题的一种算法及模拟 |
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| 引用本文： | 刘茵,宫莲,刘苹,唐统一. 低频电流场逆问题的一种算法及模拟[J]. 清华大学学报(自然科学版), 1990, 0(1) |
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| 作者姓名： | 刘茵 宫莲 刘苹 唐统一 |
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| 作者单位： | 电机工程与应用电子技术系(刘茵，宫莲，刘苹)，电机工程与应用电子技术系(唐统一) |
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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。
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| 关 键 词： | 生物医学电子学 电导率 阻抗成像 有限元素法 |
An Algorithm and Simulation of the Inverse Problem of a Low-frequency Current Fild |
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| Liu Yin,Gong Lian,Liu Ping,Tang Tongyi. An Algorithm and Simulation of the Inverse Problem of a Low-frequency Current Fild[J]. Journal of Tsinghua University(Science and Technology), 1990, 0(1) |
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| Authors: | Liu Yin Gong Lian Liu Ping Tang Tongyi |
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| Affiliation: | Liu Yin,Gong Lian,Liu Ping,Tang Tongyi Department of Electrical Engineering |
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| Abstract: | 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. |
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| Keywords: | biomedical electronics electrical conductivity impedance imaging FEM |
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