A Modified Perturbation Method for Three-dimensional Time Harmonic Impedance Tomography
A reconstruction algorithm for three dimensional time harmonic impedance imaging based on the Modified Perturbation Method (MPM), is proposed. Both the object conductivity (σ) and permittivity (ε) are reconstructed. The original Perturbation method developed for static problems was modified in order to apply in time harmonic problem in higher frequency. In this case complex permittivity and complex voltages are involved. So,major modifications have been made in order to achieve accepted results. The jacobian matrix is expressed in complex form and the modified perturbation reconstruction algorithm formulated accordingly. A number of successful reconstructions were carried out for different complex permittivity profiles,but all of them based on a computer phantom approach.
D.G.Drogoudis G.C.Trichopoulos G.A.Kyriacou J.N.Sahalos
Democritus University of Thrace,Greece Aristotle University of Thessaloniki,Greece
国际会议
Progress in Electromagnetics Research Symposium 2005(2005年电磁学研究新进展学术研讨会)(PIERS 2005)
杭州
英文
151-155
2005-08-22（万方平台首次上网日期，不代表论文的发表时间）