HF propagation in a complex maritime environments from an asymptotic approach validated from a based-MoM rigorous code
Résumé
In the context of HF (typically 3-30 MHz) prop-
agation over sea surfaces, this paper presents the
computation of the attenuation function (related to
the ratio of the scattered field over the incident field)
for a curved rough surface in the presence of is-
lands, like sea-land-sea mixed curved paths. Two
approaches are then developed (i) An asymptotic ap-
proach based on the Bremmer and Feinberg works
(residues series) and extended, from an heuristic
way, to include the surface roughness (ii) A based-
MoM rigorous code in order to validate the asymp-
totic approach.