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Stochastic scattering model for the application of SBR to rough surfaces

: Weinmann, F.

Institute of Electrical and Electronics Engineers -IEEE-:
5th European Conference on Antennas and Propagation, EUCAP 2011. Proceedings : 11-15 April 2011, Rome, Italy
New York, NY: IEEE, 2011
ISBN: 978-1-4577-0250-1
ISBN: 978-88-8202-074-3
European Conference on Antennas and Propagation (EUCAP) <5, 2011, Rome>
Fraunhofer FHR

A large variety of simulation tools for calculating scattered fields have been published in literature. Basically, there are two main approaches, the so-called numerically exact or full-wave solutions, e.g. using Method of Moments (MoM), and the high-frequency or asymptotic solutions, e.g. using rays for modelling propagation paths. However, most of these simulation tools are limited to perfectly conducting surfaces or homogeneous dielectric bodies with ideally smooth surfaces. The present paper studies the enhancement of a ray tracing code based on the well-known Shooting-and-Bouncing-Rays (SBR) technique for calculating scattered fields of arbitrary objects, whose surfaces are characterised by roughness parameters.