Aplicación del Método de Descomposición de Dominios empleando soluciones asintóticas para problemas de radiación y dispersión electromagnética en plataformas complejas

Resumo

This Thesis has focused fundamentally on three aspects, beginning with the RCS calculation of huge superstructures. Providing a fast and accurate alternative, in applications that demand high workload intensive simulations. Using the iterative physical optics methodology (IPO), amazing accelerations and excellent results are achieved, estimating crucial elements such as cavities and small radiating elements, precisely. Implementing a quasi-full-wave solution, based on its high stringency, through the iterated resolution of the MFIE. Secondly, advanced ray tracing algorithms have been incorporated for the synthesis of three dimensional images with real-time rendering on dedicated hardware (GPU). Using the NVIDIA OptiX API library, it is possible to apply all the acceleration power that graphics processing hardware allows to perform ray tracing tasks (with high computational cost), required for collision detection and visibility determination. Providing a computational acceleration and the development of a toolkit to identify clearance and blind sectors (field of vision), for different sensors, antennas and all kinds of systems on board ships, planes or any other supporting platform. Finally, a multipurpose electromagnetic simulation software has been obtained. Able to combine full-wave methods, based on the method of moments (MoM) and the multilevel fast multipole algorithm (MLFMA). Along with quasi-full-wave methods, such as the one developed in this Thesis, based on IPO methodology. This strategy solves huge electromagnetic problems with the precision of full-wave techniques and the drastic reduction in computation time of optical physics and DDM scheme.