Title:
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High frequency radar cross section of complex objects in real time
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Author:
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Rius Casals, Juan Manuel; Vall-Llossera Ferran, Mercedes Magdalena
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. ANTENNALAB - Grup d'Antenes i Sistemes Radio; Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció |
Abstract:
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It is shown that real-time RCS (radar cross section) computation is possible with a high-performance graphics workstation. Physical optics (PO) and physical theory of diffraction (PTD) approximation are computed using the hardware capabilities of a graphics accelerator. Real-time computation is achieved through graphical processing of an image of the target present at the workstation screen. First-order reflections are obtained by rendering the target with a local illumination algorithm, and multiple scattering with a global illumination one. A computer-aided design package for geometric modeling of solids has been used for modeling target geometry. The target is described as a collection of parametric surfaces, defined with two-dimensional NURBS (nonuniform rational B-splines). Parametric surface modeling of the target imposes smaller storage memory and CPU time requirements than the faceting approach, and the modeled surface adjusts more accurately to the real target surface. |
Abstract:
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Peer Reviewed |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació -Radar -Radar cross-sections -Workstations -Radar |
Rights:
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Document type:
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Article - Published version Conference Object |
Published by:
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Institute of Electrical and Electronics Engineers (IEEE)
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