%0 Conference Proceedings %T Comparison of Nx2D and 3D Split-Step Fourier Methods in Realistic 3D Ducting Conditions %+ Ecole Nationale de l'Aviation Civile (ENAC) %A Zhou, Hang %A Douvenot, Rémi %A Chabory, Alexandre %< avec comité de lecture %( International Applied Computational Electromagnetics Society (ACES) Symposium 2017 %B International Applied Computational Electromagnetics Society (ACES) Symposium 2017 %C Suzhou, China %P ISBN : 978-1-5090-4311-8 %8 2017-08 %D 2017 %K 3D propagation %K discrete formulation %K tropos- phere propagation %K ducts %Z Engineering Sciences [physics]/ElectromagnetismConference papers %X A 3D split-step Fourier method is presented and tested. It is based on a spectral representation of the discrete wave equation in cylindrical coordinates. The formulations in this method are self-consistent in the discrete domain. This method is applied to simulate the propagation with ducts retrieved after clutter data inversion. In the numerical tests, the difference between N × 2D and 3D models is not significant. Thus, in this case, considering the 3D atmosphere effects is unnecessary. %G English %2 https://enac.hal.science/hal-01609755/document %2 https://enac.hal.science/hal-01609755/file/comparison_N2D_3D_SSF.pdf %L hal-01609755 %U https://enac.hal.science/hal-01609755 %~ ENAC %~ TELECOM %~ TELECOM-EMA