Modelling of angular dispersion due to rough surface scattering for implementation in ray-tracing-based propagation prediction tools

M.R.J.A.E. Kwakkernaat, M.H.A.J. Herben

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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Abstract

This paper describes the modelling of scattering caused by irregular surfaces as a basis for im-plementation in ray-tracing methods. An approach is presented in a first attempt to model the dispersive effects, caused by scattering on surfaces which have "random" irregularities, directly at the receiver. The method is based on assigning an effective stochastic roughness to a specific surface. The scattering effects caused by the surface roughness include the combined effects of both the surface irregularities and changes in material properties. The possibility of including the model into a 3-D ray-tracer is outlined. The results of simulations and measurements show that the method can be used to model the dispersive effects of rough surface scattering in a manner similar to using the reflection reduction factor for Gaussian surfaces, except that the reduced power in the specular direction is distributed in the angular domain.
Original languageEnglish
Title of host publicationProceedings of COST 2100 Pervasive Mobile & Ambient Wireless Communications, 16-18 February 2009, Braunschweig, Germany
Pages1-23
Publication statusPublished - 2009

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ray tracing
propagation
predictions
scattering
irregularities
tracers
rays
surface roughness
roughness
receivers
simulation

Cite this

Kwakkernaat, M. R. J. A. E., & Herben, M. H. A. J. (2009). Modelling of angular dispersion due to rough surface scattering for implementation in ray-tracing-based propagation prediction tools. In Proceedings of COST 2100 Pervasive Mobile & Ambient Wireless Communications, 16-18 February 2009, Braunschweig, Germany (pp. 1-23)
Kwakkernaat, M.R.J.A.E. ; Herben, M.H.A.J. / Modelling of angular dispersion due to rough surface scattering for implementation in ray-tracing-based propagation prediction tools. Proceedings of COST 2100 Pervasive Mobile & Ambient Wireless Communications, 16-18 February 2009, Braunschweig, Germany. 2009. pp. 1-23
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Kwakkernaat, MRJAE & Herben, MHAJ 2009, Modelling of angular dispersion due to rough surface scattering for implementation in ray-tracing-based propagation prediction tools. in Proceedings of COST 2100 Pervasive Mobile & Ambient Wireless Communications, 16-18 February 2009, Braunschweig, Germany. pp. 1-23.

Modelling of angular dispersion due to rough surface scattering for implementation in ray-tracing-based propagation prediction tools. / Kwakkernaat, M.R.J.A.E.; Herben, M.H.A.J.

Proceedings of COST 2100 Pervasive Mobile & Ambient Wireless Communications, 16-18 February 2009, Braunschweig, Germany. 2009. p. 1-23.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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AB - This paper describes the modelling of scattering caused by irregular surfaces as a basis for im-plementation in ray-tracing methods. An approach is presented in a first attempt to model the dispersive effects, caused by scattering on surfaces which have "random" irregularities, directly at the receiver. The method is based on assigning an effective stochastic roughness to a specific surface. The scattering effects caused by the surface roughness include the combined effects of both the surface irregularities and changes in material properties. The possibility of including the model into a 3-D ray-tracer is outlined. The results of simulations and measurements show that the method can be used to model the dispersive effects of rough surface scattering in a manner similar to using the reflection reduction factor for Gaussian surfaces, except that the reduced power in the specular direction is distributed in the angular domain.

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Kwakkernaat MRJAE, Herben MHAJ. Modelling of angular dispersion due to rough surface scattering for implementation in ray-tracing-based propagation prediction tools. In Proceedings of COST 2100 Pervasive Mobile & Ambient Wireless Communications, 16-18 February 2009, Braunschweig, Germany. 2009. p. 1-23