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An enhanced multistep strategy based on a multiresolution particle swarm optimizer is proposed for 3-D microwave imaging. The aim of such an integration is to improve the convergence capabilities of the approach and to reduce the dimension of the search space and the computational burden of the optimization strategy, thanks to a constrained control of the particle velocities adaptively determined...
This contribution presents a new comparative experimental assessment of methodologies for quantitative electromagnetic imaging of unknown scatterers from amplitude-only measurements of the total field. The proposed reconstruction procedure splits the problem in two steps. The first step is aimed at estimating the distribution of the radiated field in the investigation domain in order to complete the...
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