کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4616763 1339358 2013 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Multi-frequency topological derivative for approximate shape acquisition of curve-like thin electromagnetic inhomogeneities
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات آنالیز ریاضی
پیش نمایش صفحه اول مقاله
Multi-frequency topological derivative for approximate shape acquisition of curve-like thin electromagnetic inhomogeneities
چکیده انگلیسی
In this paper, we investigate a non-iterative imaging algorithm based on the topological derivative in order to retrieve the shape of penetrable electromagnetic inclusions when their dielectric permittivity and/or magnetic permeability differ from those in the embedding (homogeneous) space. The main objective is the imaging of crack-like thin inclusions, but the algorithm can be applied to arbitrarily shaped inclusions. For this purpose, we apply multiple time-harmonic frequencies and normalize the topological derivative imaging function by its maximum value. In order to verify its validity, we apply it for the imaging of two-dimensional crack-like thin electromagnetic inhomogeneities completely hidden in a homogeneous material. Corresponding numerical simulations with noisy data are performed for showing the efficacy of the proposed algorithm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Mathematical Analysis and Applications - Volume 404, Issue 2, 15 August 2013, Pages 501-518
نویسندگان
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