Title :
Eigenfunction expansion of polarisation currents for high-contrast dielectric cylinder imaging
Author :
Kim, Jeong-Hwan ; Ra, Jung-Woorng ; Kang, Jin-Seoh
Author_Institution :
Div. of Electromag. Metrol., Korea Adv. Inst. of Stand. & Sci., Taejon, South Korea
fDate :
1/20/2000 12:00:00 AM
Abstract :
Orthogonal and complete eigenfunctions with resonance characteristics are introduced for the Fourier series representation of the polarisation current inside a scatterer. In addition, using a hybrid algorithm a high-contrast circular dielectric cylinder with a diameter of two wavelengths is reconstructed with multiple incidences of plane waves in the presence of 20% Gaussian noise in the scattered fields
Keywords :
Fourier series; Gaussian noise; eigenvalues and eigenfunctions; electromagnetic wave scattering; image reconstruction; inverse problems; microwave imaging; permittivity; Fourier series representation; Gaussian noise; circular dielectric cylinder; dielectric cylinder imaging; eigenfunction expansion; high-contrast imaging; hybrid algorithm; inversion algorithm; multiple incidences; orthogonal eigenfunctions; plane waves; polarisation currents; resonance characteristics; scattered fields; scatterer;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20000187
