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Domain Decomposition Spectral Method Applied to Modal Method: Direct and Inverse Spectral Transforms
Sensors, 2022 We introduce a Domain Decomposition Spectral Method (DDSM) as a solution for Maxwell’s equations in the frequency domain. It will be illustrated in the framework of the Aperiodic Fourier Modal Method (AFMM).
Kofi Edee +8 more
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The 2D Spectral Intrinsic Decomposition Method Applied to Image Analysis [PDF]
Journal of Electrical and Computer Engineering, 2017 We propose a new method for autoadaptive image decomposition and recomposition based on the two-dimensional version of the Spectral Intrinsic Decomposition (SID).
Samba Sidibe +4 more
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The Spectral Projection Decomposition Method for Elliptic Equations in Two Dimensions [PDF]
SIAM Journal on Numerical Analysis, 1997 An extension of the spectral collocation method to elliptic problems in polyrectangular domains is presented, the so-called projection decomposition method. Theoretical and numerical results are given demonstrating the high accuracy of the resulting projection decomposition -- spectral collocation method, as well as its computational efficiency.
Paola Gervasio, A Quarteroni
exaly +4 more sources
Inverse analysis method using spectral decomposition of Green's function [PDF]
Geophysical Journal International, 2001 SUMMARY An inverse analysis method using the spectral decomposition of Green's function is proposed. For linear inverse problems of identifying inner sources from surface responses, Green's function, relates the sources to the responses. Since this function behaves as a compact operator, it admits the spectral decomposition and is expressed as a sum
Muneo Hori
exaly +2 more sources
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 This article proposes an efficient and high-fidelity panchromatic (PAN) spectral decomposition method based on smoothing filtering for multispectral (MS) and hyperspectral (HS) image pansharpening.
Mi Wang +5 more
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Domain decomposition preconditioners for the spectral collocation method [PDF]
Journal of Scientific Computing, 1988 This paper proposes and analyzes several block iteration preconditioners for the solutions of elliptic problems by spectral collocation methods in a region partitioned into several rectangles. One considers a spectral collocation approximation which consists of collocating differential equations at Gaussian collocation points; and then a variational ...
QUARTERONI, ALFIO MARIA +1 more
openaire +1 more source
Image-Domain Based Material Decomposition by Multi-Constraint Optimization for Spectral CT
IEEE Access, 2020 As a new generation computed tomography (CT) technology, spectral CT has great potential in many aspects, especially in the identification and decomposition of materials.
Jian Feng +3 more
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A planar plasma antenna with a dielectric coat [PDF]
Радиофизика и электроника, 2020 Subject and Purpose. The coefficients of surface wave energy transformation to radiation and the radiation patterns are calculated for an open structure like a planar longitudinally inhomogeneous plasma layer located in between a metal layer and a ...
A.N. Artemenko +3 more
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Materials Theory, 2022 Strain energy decomposition methods in phase field fracture models separate strain energy that contributes to fracture from that which does not. However, various decomposition methods have been proposed in the literature, and it can be difficult to ...
Shuaifang Zhang +2 more
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Perturbative method for generalized spectral decompositions [PDF]
Physica A: Statistical Mechanics and its Applications, 1999 21 ...
Laura, Roberto +2 more
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