Exploració per autor "Rius Casals, Juan Manuel"
Ara es mostren els items 210-223 de 223
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Validation of a sea surface model for simulations of dynamic maritime SAR images
Yam Ontiveros, Luis Eduardo; Mallorquí Franquet, Jordi Joan; Rius Casals, Juan Manuel (IEEE, 2012)
Comunicació de congrés
Accés restringit per política de l'editorialControllable maritime scenarios have become a central issue in the research of new applications of SAR imaging to vessel monitoring systems. Numerical tools such as GRECOSAR, a SAR simulator of complex targets, are able ... -
Vector spherical harmonic analysis and experimental validation of spherical shells illuminated with broadband, millimeter wave Gaussian beams: applications to corneal sensing
Zarrinkhat, Faezeh; Lamberg, Joel; Tamminen, Aleksi; Baggio, Mariangela; Nefedova, Irina; Ala-Laurinaho, Juha; Khaled, Elsayed E. M.; Romeu Robert, Jordi; Rius Casals, Juan Manuel; Taylor, Zachary (2022-06-03)
Article
Accés obertCoupling to longitudinal modes of thin spherical shells, under Gaussian-beam illumination, was explored with a theoretical method based on Fourier-optics analysis and vector spherical harmonics and was scrutinized with an ... -
Versatile and accurate electromagnetic analysis of piecewise homogeneous composite objects
Sekulic, Ivan; Úbeda Farré, Eduard; Rius Casals, Juan Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2018)
Text en actes de congrés
Accés restringit per política de l'editorialThe discretization by the Method of Moments (MoM) of electromagnetic integral equations, namely, the Electric Field Integral Equation (EFIE) for perfect electric conductors (PECs) and the Poggio-Miller-Chan-Harrington-Wu-Tsai ... -
Versatile and accurate schemes of discretization for the electromagnetic scattering analysis of arbitrarily shaped piecewise homogeneous objects
Sekulic, Ivan; Úbeda Farré, Eduard; Rius Casals, Juan Manuel (2018-12-01)
Article
Accés obertThe discretization by the method of moments (MoM) of integral equations in the electromagnetic scattering analysis most often relies on divergence-conforming basis functions, such as the Rao–Wilton–Glisson (RWG) set, which ... -
Versatile and accurate schemes of discretization in the scattering analysis of 2-D composite objects with penetrable or perfectly conducting regions
Sekulic, Ivan; Úbeda Farré, Eduard; Rius Casals, Juan Manuel (2017-05-01)
Article
Accés obertThe method-of-moment discretization of boundary integral equations in the scattering analysis of closed infinitely long (2-D) objects, perfectly conducting (PEC) or penetrable, is traditionally carried out with continuous ... -
Versatile facet-oriented discretization of the electric-field integral equation
Úbeda Farré, Eduard; Sekulic, Ivan; Rius Casals, Juan Manuel; Heldring, Alexander (Institute of Electrical and Electronics Engineers (IEEE), 2015)
Text en actes de congrés
Accés restringit per política de l'editorialTraditional method-of-moment implementations of the electric-field integral equation (EFIE) are based on sets of divergence-conforming basis functions, such as the loworder Rao-Wilton-Glisson (RWG) set, which arise from ... -
Very accurate computation of the impedance elements on the discretization of the magnetic field integral equation with the orthogonal basis functions
Tamayo Palau, José María; Úbeda Farré, Eduard; Polimeridis, Athanasios G.; Rius Casals, Juan Manuel; Mosig, Juan Ramón (2011)
Text en actes de congrés
Accés obertWe show a novel integrating technique, the direct evaluation method, that provides maximum accuracy in the computation of the MFIE-interactions between neighboring noncoplanar basis functions sharing an edge or a vertex ... -
Volumetric testing for a nonconforming discretization in method of moments of the electric-field surface integral equation
Úbeda Farré, Eduard; Rius Casals, Juan Manuel; Heldring, Alexander (2013)
Text en actes de congrés
Accés restringit per política de l'editorialImplementations in Method of Moments of the Electric-Field Integral Equation (EFIE) are traditionally carried out with divergence-conforming sets, with normal continuity of the current across edges. This gives rise to ... -
Volumetric testing for the nonconforming discretization of integral equations in scattering problems
Úbeda Farré, Eduard; Sekulic, Ivan; Rius Casals, Juan Manuel; Heldring, Alexander (Institute of Electrical and Electronics Engineers (IEEE), 2015)
Text en actes de congrés
Accés restringit per política de l'editorialThe traditional discretizations of the electric-field integral equation (EFIE) impose the continuity of the normal component current across the edges in the meshing. These edgeoriented schemes become awkward in the ... -
Volumetric testing parallel to the boundary surface for a nonconforming discretization of the electric-field integral equation
Úbeda Farré, Eduard; Rius Casals, Juan Manuel; Heldring, Alexander; Sekulic, Ivan (2015-07)
Article
Accés obertThe volumetric monopolar-RWG discretization of the electric-field integral equation (EFIE) imposes no continuity constraint across edges in the surface discretization around a closed conductor. The current is expanded with ... -
Volumetric testing with wedges for a nonconforming discretization of the Electric-Field Integral Equation
Úbeda Farré, Eduard; Rius Casals, Juan Manuel; Heldring, Alexander (Institute of Electrical and Electronics Engineers (IEEE), 2014)
Text en actes de congrés
Accés restringit per política de l'editorialThe discretization in Method of Moments (MoM) of the Electric-Field Integral Equation (EFIE) is traditionally carried out with divergence-conforming sets of basis functions, like the RWG set. This enforces the normal ... -
Volumetric testing with wedges for a nonconforming discretization of the PMCHWT formulation
Sekulic, Ivan; Úbeda Farré, Eduard; Rius Casals, Juan Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
Text en actes de congrés
Accés obertThe monopolar-Rao-Wilton-Glisson (RWG) discretization of the Poggio-Miller-Chan-Harrington-Wu-Tsai (PM-CHWT) integral equation imposes no continuity constraints in the current expansion across the edges arising from the ... -
Wavefront-modified vector beams for THz cornea spectroscopy
Lamberg, Joel; Zarrinkhat, Faezeh; Tamminen, Aleksi; Baggio, Mariangela; Ala-Laurinaho, Juha; Rius Casals, Juan Manuel; Romeu Robert, Jordi; Khaled, Elsayed E. M.; Taylor, Zachary (Optical Society of American (OSA), 2023-11-20)
Article
Accés obertTerahertz spectroscopy is a promising method to diagnose ocular diseases, where the cornea is typically imaged by Gaussian beams. However, the beam’s mismatch with the cornea’s spherical surface produces a 5-10 % error in ... -
Zeroth-order divergence-complete discretizations of the EFIE at very low frequencies
Úbeda Farré, Eduard; Tamayo Palau, José María; Rius Casals, Juan Manuel (2009-07-20)
Text en actes de congrés
Accés obertWe present the Self-Loop basis functions, an edge-oriented divergence-conforming set with zero charge density. These basis functions allow a rearrangement of the Linear-linear basis functions set to overcome the ...