Yazar "Yapar, Ali" için listeleme
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CNN-Based deep learning architecture for electromagnetic imaging of rough surface profiles
Aydın, İzde; Budak, Güven; Sefer, Ahmet; Yapar, Ali (IEEE, 2022-10)A convolutional neural network (CNN) based deep learning (DL) technique for electromagnetic imaging of rough surfaces separating two dielectric media is presented. The direct scattering problem is formulated through the ... -
Electromagnetic imaging of rough dielectric surface profiles using a single-frequency reverse time migration method
Sefer, Ahmet; Yapar, Ali; Bağcı, Hakan (IEEE, 2023-07)An electromagnetic imaging scheme, which makes use of a single-frequency reverse time migration (RTM) technique to reconstruct two-dimensional (2D) rough surface profiles from the scattered field data, is formulated and ... -
Image recovery of inaccessible rough surfaces profiles having impedance boundary condition
Sefer, Ahmet; Yapar, Ali (IEEE, 2022)This letter addresses a reconstruction algorithm of locally rough inaccessible surface profiles via the knowledge of the scattered field data under the consideration of the impedance boundary condition (IBC). To this aim, ... -
Imaging of rough surfaces by RTM method
Sefer, Ahmet; Yapar, Ali; Yelkenci, Tanju (IEEE, 2024)An electromagnetic imaging framework is implemented utilizing a single frequency reverse time migration (RTM) technique to accurately reconstruct inaccessible two-dimensional (2D) rough surface profiles from the knowledge ... -
Inverse scattering by perfectly electric conducting (PEC) rough surfaces: an equivalent model with line sources
Sefer, Ahmet; Yapar, Ali (Institute of Electrical and Electronics Engineers Inc., 2022)This paper presents a new method for the reconstruction of the perfectly electric conducting (PEC) rough surface profiles by utilizing electromagnetic waves. The inaccessible rough surface is illuminated by a tapered plane ... -
Meme kanserinin tanısı ve izlenmesi için mikrodalga uyarımlı termoakustik görüntüleme
Karaman, Mustafa; Uzun, Banu; Özdemir, Özgür; Yazgı, Metin; Şimşek, Serkan; Doğan, Aydın; Aksun, Muhammet İrşadi (Tübitak, 2017-10)Termoakustik görüntüleme, iyonize etkisi olmayan, noktasal ve kontrast çözünürlüğü yüksek yeni bir hibrit görüntüleme modalitesi olup kanserinin erken tanısı ve izlenmesi için uygun bir tekniktir. Bu teknik bilimsel, ... -
Reconstruction algorithm for impenetrable rough surface profile under Neumann boundary condition
Sefer, Ahmet; Yapar, Ali (Taylor and Francis Ltd., 2022-05-24)In this paper, an algorithm to reconstruct one-dimensional impenetrable rough surface from the knowledge of scattering field is presented. The rough surface is considered as locally perturbed and the scattering field data ... -
Recovery of impenetrable rough surface profiles via CNN-based deep learning architecture
Aydın, İzde; Budak, Güven; Sefer, Ahmet; Yapar, Ali (Taylor and Francis Ltd., 2022-08-18)In this paper, a convolutional neural network (CNN)-based deep learning (DL) architecture for the solution of an electromagnetic inverse problem related to imaging of the shape of the perfectly electric conducting (PEC) ...