Geophysical information inputs for computing the performance of EM systems in littoral environments

摘要

This paper presents PREDEM V2, a decision-aid tool dedicated to the French Navy. It can be used for radar applications, but also for various electromagnetic systems that are sensitive to various propagation effects (refraction including ducting, sea reflection, and scattering, diffraction by the coastline). Many efforts have been made to obtain a complete and accurate four-dimensional (three dimensions plus time) refractivity mapping. Other current works concern sea-surface effects, especially in terms of clutter modeling. Some of the capabilities of PREDEM V2 are illustrated, and some promising experimental results are also discussed.