Journal Article

·2004

On the Reconstruction of Inhomogeneous Surface Impedance of Cylindrical Bodies

Hülya Şahintürk YTU

IEEE Transactions on Magnetics

Abstract

A method to reconstruct the inhomogeneous surface impedance of a cylindrical body through the measured far-field scattering data is given. The scattered field is represented as a single-layer potential which leads to an ill-posed integral equation of the first kind that is solved via Tikhonov regularization. The use of the jump relations for the single-layer potential enables the evaluation of the total field and its derivative on the boundary of the scatterer. Then, the surface impedance is reconstructed from the boundary condition itself either by direct evaluation or by a minimum norm solution in the least-squares sense. The numerical results show that the method yields good resolution.

Keywords

Tikhonov regularization Mathematical analysis Integral equation Electrical impedance Regularization (linguistics) Scattering Boundary value problem Jump Surface (topology) Physics Directional derivative Reciprocity (cultural anthropology) Mathematics Optics Geometry Inverse problem Computer science

Subject Areas

Numerical methods in inverse problems ·Mathematical Physics ·Physical Sciences
Microwave Imaging and Scattering Analysis ·Biomedical Engineering ·Physical Sciences
Electromagnetic Scattering and Analysis ·Atomic and Molecular Physics, and Optics ·Physical Sciences

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