Contribution à l'estimation de la SER d'une cible navale en environnement réel : modélisation et mesures

Abstract : In the naval electronic warfare, it is necessary to improve the stealth of military vessels in order to make them more difficult to be detected and be located. For that, the Radar Cross Section (RCS) value must be reduced to be negligible compared to the environment’s clutter. Experience has shown that the value of the measured RCS is strongly influenced by the environment. Nowadays, estimators developed offer good performance to determine the RCS of small naval targets but become inaccurate for large objects placed in inhomogeneous medium such as the marine environment. Our goal is to propose a new RCS estimation method which takes into account large targets and propagation phenomena in martime environment. A dyadic Green function, related to the radio wave propagation in an evaporation duct over smooth and perfectly conducting sea, is then developed and proposed to calculate the RCS of large naval targets.
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Erwan Gillion. Contribution à l'estimation de la SER d'une cible navale en environnement réel : modélisation et mesures. Traitement du signal et de l'image. Université Rennes 1, 2014. Français. ⟨NNT : 2014REN1S120⟩. ⟨tel-01146427⟩

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