Microwave Imaging of Electrical Wires With MUSIC Algorithm

Kurtoglu I., Çayören M., ÇAVDAR İ. H.

IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, vol.16, no.5, pp.707-711, 2019 (SCI-Expanded) identifier identifier


Microwave imaging of electrical wires with multiple signal classification (MUSIC) algorithm is considered. The motivation arises from safety/security applications where concealed electrical wires are required to be remotely sensed in a quasireal-time setting. The algorithm is first reanalyzed in terms of scattering parameters to better incorporate experimental microwave measurements. Later, a simple strategy, where the spectral cutoff is selected based on the expected signal-tonoise level, is introduced to enhance imaging capabilities. The reformulated algorithm is experimentally verified with limited aperture measurements performed with an antenna array in a nonanechoic environment. The results demonstrate that the algorithm can rapidly reconstruct images that clearly reveal geometrical features of electrical wires.