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Concerning the state-of-the-art of the application of EAs to inverse scattering, it should be firstly pointed out that their use in computational electromagnetics has a relatively short history, although their use was growing faster from the beginning. However, many of these algorithms (e.g., PSO and ACO) cannot be considered fully developed inversion techniques when compared to other imaging methodologies...
The reconstruction of unknown regions through active microwave imaging techniques requires the retrieval of a large amount of unknown parameters if one aims at fully characterize the electromagnetic properties of the targets under test. Unfortunately, a limited number of independent measurements is available, especially when the scattered field is undersampled because of intrinsic limitations of the...
Inverse scattering data, even though collected in a controlled-environment, are usually corrupted by noise, which strongly affects the effectiveness of the reconstruction techniques because of the intrinsic ill-positioning of the problem. In order to limit the effects of the noise on the retrieval procedure and to fully exploit the information content available from the measurements, an innovative...
In the framework of the inverse scattering methodologies, this paper is aimed at preliminarily assessing the integration between the Iterative Multi-Scaling Approach and the Level-Set-based method. In order to enhance the potentialities of the Level-Set-based minimization, a multi-resolution procedure is employed for allowing a finer discretization only in those regions of interest where the scatterers...
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