Lin, H.-T.H.-T.LinYEAN-WOEI KIANG2020-06-112020-06-11199400189480https://scholars.lib.ntu.edu.tw/handle/123456789/497878https://www.scopus.com/inward/record.uri?eid=2-s2.0-0028483896&doi=10.1109%2f22.297821&partnerID=40&md5=33555ef64aab5e9fbcba851a16e16ce0The problem of reconstructing both the shape and the relative permittivity of a homogeneous dielectric cylinder from the measurement of scattered field is numerically simulated. The Newton-Kantorovitch algorithm and the moment method are used to solve a set of nonlinear integral equations. Numerical results show that, with multiple incident directions, good reconstruction is obtained. This algorithm can be applied at a single frequency without limitation on the value of dielectric constant. The effect of random noise on imaging reconstruction is also investigated. © 1994 IEEEAlgorithms; Circular waveguides; Electromagnetic wave scattering; Image reconstruction; Imaging techniques; Integral equations; Iterative methods; Mathematical models; Microwaves; Nonlinear equations; Permittivity; Spurious signal noise; Dielectric cylinder; Microwave imaging; Newton-Kantorovitch algorithm; Random noise; Dielectric waveguidesjournal article10.1109/22.2978212-s2.0-0028483896