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Later, a different optimization scheme, the modified gradient method, was proposed, where not only the physical properties of the targets are considered as unknowns but also the electric fields, which are simultaneously updated at each iteration of the optimization.
From such a pioneering work, the same authors proposed the well-known contrast source inversion CSI , considering the unknown to be the induced contrast sources instead of fields in order to form a new type of formulation. Compared to the original modified gradient method, the CSI method uses alternative optimization scheme so as to reduce the complexity of the nonlinear calculations.
In this talk, we further stretch the idea in the CSI to consider only the contrast sources as the unknowns by introducing a new type of formulations. Having such a new optimization scheme, one is able to justify the obtained reconstructed results by comparing them to each other and to the one obtained by the original CSI.
Keywords : contrast source inversion modified gradient method optimization inverse scattering electromagnetics. Document type : Conference papers.
An Introduction to Electromagnetic Inverse Scattering. Authors: Hopcraft, K.I., Smith, P.R.. Free Preview. Buy this book. eBook ,52 €. price for Spain (gross). An Introduction to Electromagnetic Inverse Scattering Part of the Developments in Electromagnetic Theory and Applications book series (DETA, volume 7).
A new optimization method for solving electromagnetic inverse scattering problems. Metrics Record views.
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Enter your email address below and we will send you your username. For inverse scattering problems involving small scatterers, the multiple signal classification method is used to determine the locations of scatterers and then the least-squares method is used to calculate the scattering strengths of scatterers. Note: Cover may not represent actual copy or condition available. Forgot password? More like this. No ratings or reviews yet. Back to results.
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