TY - GEN
T1 - Experimental verification of 2D sparse electromagnetic imaging
AU - Nikolic, Marija
AU - Djordjevic, Antonije
AU - Nehorai, Arye
PY - 2012
Y1 - 2012
N2 - Because of the high contrast, electromagnetic imaging of metallic targets hidden inside dielectric domains is challenging. We develop a two-step algorithm that utilizes the sparseness of induced currents on the surfaces of perfectly conducting (PEC) scatterers in two-dimensional (2D) space. The main assumption is that the response of the targets can be approximated by that of a few electric filament currents. We compute the locations of the equivalent currents by using the linear model based on the electric field integral equation (EFIE) and l 1 regularization. The paper concerns the experimental verification of the proposed 2D imaging algorithm. By using the image theory, we design an equivalent three-dimensional (3D) experimental model. The obtained results validate the proposed method.
AB - Because of the high contrast, electromagnetic imaging of metallic targets hidden inside dielectric domains is challenging. We develop a two-step algorithm that utilizes the sparseness of induced currents on the surfaces of perfectly conducting (PEC) scatterers in two-dimensional (2D) space. The main assumption is that the response of the targets can be approximated by that of a few electric filament currents. We compute the locations of the equivalent currents by using the linear model based on the electric field integral equation (EFIE) and l 1 regularization. The paper concerns the experimental verification of the proposed 2D imaging algorithm. By using the image theory, we design an equivalent three-dimensional (3D) experimental model. The obtained results validate the proposed method.
KW - inverse scattering
KW - l regularization
KW - sparse imaging
UR - https://www.scopus.com/pages/publications/84862863489
U2 - 10.1109/EuCAP.2012.6206671
DO - 10.1109/EuCAP.2012.6206671
M3 - Conference contribution
AN - SCOPUS:84862863489
SN - 9781457709180
T3 - Proceedings of 6th European Conference on Antennas and Propagation, EuCAP 2012
SP - 1510
EP - 1514
BT - Proceedings of 6th European Conference on Antennas and Propagation, EuCAP 2012
T2 - 6th European Conference on Antennas and Propagation, EuCAP 2012
Y2 - 26 March 2012 through 30 March 2012
ER -