2008 IEEE International RF and Microwave Conference 2008
DOI: 10.1109/rfm.2008.4897425
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Single step microwave imaging in the time domain using FDTD-based gradient minimization

Abstract: This paper deals with single step microwave imaging for reconstructing the dielectical properties of the unknown targets in 2D. The image reconstruction algorithm is based on the gradient minimization of an augmented cost function defined as the different between measured and calculated fields. The algorithm requires two successive steps for convergent: the direct and the adjoint solutions. The forward-backward time stepping algorithm, implementing the finite-difference time-domain (FDTD) method with PML absor… Show more

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