Konu "Integral equations" için listeleme
Toplam kayıt 16, listelenen: 1-16
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CNN-Based deep learning architecture for electromagnetic imaging of rough surface profiles
(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 ... -
Comments on "upper cutoff frequency of the bound wave and new leaky wave on the slotline"
(IEEE-INST Electrical Electronics Engineers Inc, 1999-05)[No abstract available] -
Confluent tip singularity of the electromagnetic field at the apex of a material cone
(Elsevier Science, 2003-09)The tip singularity of the electromagnetic field at the apex of a cone (conical sheet) is investigated in its most general framework. To this end one considers, without loss of generality, a circularly symmetric cone which ... -
Diffraction of two-dimensional high-frequency electromagnetic waves by a locally perturbed two-part impedance plane
(Elsevier Science BV, 2005-06)During the second half of the last century mixed boundary-value problems had been an appealing research subject for both mathematicians and engineers. Among this kind of problems those connected with wave propagation in ... -
Diffraction of two-dimensional high-frequency electromagnetic waves by a locally perturbed two-part impedance plane
(2004)Among the wave propagation problems, those connected with half-spaces bounded by sectionally homogeneous boundaries take important place because they are motivated by microwave applications. If the boundary are of three ... -
Image recovery of inaccessible rough surfaces profiles having impedance boundary condition
(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
(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 solution of thermoacoustic wave equation for cylindrical layered media
(Frontiers Media S.A., 2022-03-30)Thermoacoustic imaging is a crossbred approach taking advantages of electromagnetic and ultrasound disciplines, together. A significant number of current medical imaging strategies are based on reconstruction of source ... -
On a class of functional equations of the Wiener-Hopf type and their applications in n-part scattering problems
(Oxford Univ Press, 2003-12)An asymptotic theory for the functional equation K-phi=f, where K : X-->Y stands for a matrix-valued linear operator of the form K=K1P1+K2P2+...+KnPn, is developed. Here X and Y refer to certain Hilbert spaces, {P-alpha} ... -
On travelling wave solutions of a generalized Davey-Stewartson system
(Oxford Univ Press, 2005-02)The generalized Davey-Stewartson (GDS) equations, as derived by Babaoglu & Erbay (2004, Int. J. Non-Linear Mech., 39, 941-949), is a system of three coupled equations in (2 + 1) dimensions modelling wave propagation in an ... -
Radiation of acoustic waves from a circumferential slot on a circular duct
(Işık University Press, 2020)Analytical solution is studied for a rigid circular waveguide which has a finite gap on its outer wall. Following the Wiener-Hopf technique, problem is formulated as a Fredholm integral equations. Asymptotic evaluations ... -
Reconstruction algorithm for impenetrable rough surface profile under Neumann boundary condition
(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
(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) ... -
Reducing a generalized Davey-Stewartson system to a non-local nonlinear Schrodinger equation
(Pergamon-Elsevier Science Ltd, 2009-07-30)In the present study, we consider a generalized (2 + 1) Davey-Stewartson (GDS) system consisting of a nonlinear Schrodinger (NLS) type equation for the complex amplitude of a short wave and two asymmetrically coupled linear ... -
Scattering of electromagnetic waves by a rectangular impedance cylinder
(Elsevier Science, 2000-04)A uniformly valid asymptotic solution is developed for the diffraction of a high-frequency wave by an infinitely long rectangular cylinder having different impedance walls. The incident wave is generated by a line source ... -
Solution of inverse source problem in thermoacoustic imaging
(Işık Üniversitesi, 2022-06-14)This study aims to investigate and explore accurate analytical inverse solutions of thermoacoustic wave equation involved in microwave induced thermoacoustic imaging of breast. Using boundary conditions, we aimed to find ...