Title :
Comparison of intersection algorithms for SBR ray tracing on NURBS
Author_Institution :
Dept. Antenna Technol. & Electromagn. Modelling AEM, Fraunhofer Inst. for High Freq. Phys. & Radar Tech. FHR, Wachtberg, Germany
Abstract :
Non-Uniform Rational B-Splines (NURBS) are a very efficient way of representing arbitrary curved surfaces. However, this type of surface representation is based on a complex mathematical formulation, which requires a very efficient implementation when using NURBS for accurate electromagnetic simulations. This paper studies the performance of different iterative ray-NURBS intersection algorithms in the framework of a Shooting-and-Bouncing-Rays (SBR) algorithm.
Keywords :
electromagnetic wave propagation; iterative methods; ray tracing; splines (mathematics); SBR ray tracing; arbitrary curved surface; electromagnetic simulation; iterative ray NURBS intersection algorithm; nonuniform rational B-spline; shooting and bouncing ray; surface representation; Algorithm design and analysis; Missiles; Newton method; Ray tracing; Splines (mathematics); Surface reconstruction; Surface topography;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6349081
