Title :
Modified gradient profile inversion using H-polarized waves
Author :
Wen Lixin ; Kleinman, R.E. ; van den Berg, P.M.
Author_Institution :
Dept. of Math. Sci., Delaware Univ., Newark, DE, USA
Abstract :
A method for reconstructing the complex permittivity of a bounded inhomogeneous object from measured scattered field data is presented. This work extends the method previously developed for the TM-case to the more complicated TE-case. In the TM-case the electric field integral equation involves an integral operator whose integrand was simply a product of the background Green´s function, contrast and field. In the TE-case, the magnetic field is polarized along the axis of an inhomogeneous cylinder of arbitrary cross-section and the corresponding integral equation contains derivatives of both the background Green´s function and the field.
Keywords :
Green´s function methods; electric fields; electromagnetic wave polarisation; electromagnetic wave scattering; integral equations; inverse problems; magnetic fields; permittivity; H-polarized waves; TE-case; TM-case; background Green´s function; bounded inhomogeneous object; complex permittivity reconstruction; contrast; electric field integral equation; inhomogeneous cylinder; integral operator; integrand; measured scattered field data; modified gradient profile inversion; polarised magnetic field; Cost function; Dielectric losses; Electromagnetic scattering; Engine cylinders; Green´s function methods; Integral equations; Iterative algorithms; Magnetic field measurement; Nonuniform electric fields; Permittivity measurement;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1995. AP-S. Digest
Conference_Location :
Newport Beach, CA, USA
Print_ISBN :
0-7803-2719-5
DOI :
10.1109/APS.1995.530884