Title :
Image reconstruction of a complex cylinder illuminated by TE waves
Author :
Chiu, Chien-Ching ; Liu, Po-Tsun
Author_Institution :
Dept. of Electr. Eng., Tamkang Univ., Tamsui, Taiwan
fDate :
10/1/1996 12:00:00 AM
Abstract :
The electromagnetic inverse scattering of a complex cylinder illuminated by transverse electric (TE) waves is investigated. The complex cylinder is a conductor coated by dielectric materials, A group of various unrelated TE waves is incident upon the object and the scattered fields are measured outside. With prior knowledge of the conductor´s shape, the complex permittivity distribution of the dielectric materials can be reconstructed. The algorithm is based on the moment method and the unrelated illumination method. Some numerical examples are given to demonstrate the capability of the algorithm. Numerical results show that the dielectric constant and the conductivity distribution of the materials can be reconstructed even when the scattered fields are contaminated by random Gaussian noise
Keywords :
image reconstruction; medical image processing; permittivity; TE waves illumination; complex cylinder image reconstruction; complex permittivity distribution; conductivity distribution; contaminated scattered fields; dielectric constant; dielectric materials-coated conductor; medical diagnostic imaging; moment method-based algorithm; numerical results; prior knowledge; random Gaussian noise; shape; Conducting materials; Dielectric materials; Dielectric measurements; Electromagnetic measurements; Electromagnetic scattering; Image reconstruction; Inverse problems; Permittivity measurement; Pollution measurement; Tellurium;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
