Title :
3D reconstruction of a lossy object using time-domain data transmitted and received with dipole antennas
Author :
Zhou, H. ; Takenaka, T. ; Tanaka, T.
Author_Institution :
Fac. of Eng., Nagasaki Univ., Japan
Abstract :
An iterative reconstruction algorithm for three-dimensional (3D) microwave tomography for a lossy object using time-domain data is presented. The calculations of both electromagnetic fields and adjoint fields in the time domain are carried out efficiently using the finite-difference time-domain (FDTD) method. Numerical calculations show that the algorithm can image simultaneously the permittivity and the conductivity of a 3D object surrounded by a lossless background medium.
Keywords :
dipole antennas; electrical conductivity; electromagnetic fields; finite difference time-domain analysis; image reconstruction; iterative methods; microwave imaging; permittivity; tomography; 3D microwave tomography; 3D reconstruction; FDTD method; adjoint fields; conductivity; dipole antennas; electromagnetic fields; finite-difference time-domain method; iterative reconstruction algorithm; lossless background medium; lossy object; permittivity; three-dimensional microwave tomography; time-domain data; Dipole antennas; Electromagnetic fields; Finite difference methods; Image reconstruction; Propagation losses; Receiving antennas; Reconstruction algorithms; Time domain analysis; Tomography; Transmitting antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1217509
