Recovering piecewise constant refractive indices by a single far-field pattern
Sign Up to like & getrecommendations! Published in 2020 at "Inverse Problems"
DOI: 10.1088/1361-6420/ab958f
Abstract: We are concerned with the inverse scattering problem of recovering an inhomogeneous medium by the associated acoustic wave measurement. We prove that under certain assumptions, a single far-field pattern determines the values of a perturbation… read more here.
Keywords: geometry; far field; piecewise constant; single far ... See more keywords
Near-Field Pattern Synthesis for Sparse Focusing Antenna Arrays Based on Bayesian Compressive Sensing and Convex Optimization
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Antennas and Propagation"
DOI: 10.1109/tap.2018.2860044
Abstract: An effective method based on Bayesian compressive sensing (BCS) and convex optimization for near-field sparse array synthesis is presented in this paper. An algorithm to generate reference-shaped beams in the near-field region with controllable sidelobe… read more here.
Keywords: convex optimization; sparse; field; field pattern ... See more keywords
Fast Localization of Small Inhomogeneities from Far-Field Pattern Data in the Limited-Aperture Inverse Scattering Problem
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DOI: 10.3390/math9172087
Abstract: In this study, we consider a sampling-type algorithm for the fast localization of small electromagnetic inhomogeneities from measured far-field pattern data in the limited-aperture inverse scattering problem. For this purpose, we designed an indicator function… read more here.
Keywords: localization small; far field; field pattern; pattern data ... See more keywords