In this paper, we study and analyze the influence of the presence of pollutants on the electromagnetic (EM) signature of sea surface. We firstly analyze the pollutant effect on the geometrical and dielectric properties of the sea surface. Then we evaluate the EM scattering coefficients of a sea surface polluted by petrol emulsion or contaminated by oil layer observed in bistatic configuration. The bistatic scattering coefficients of a clean and a polluted sea surface are computed from the rigorous Forward-Backward Method (FBM) and the asymptotic models Small Slope Approximation (SSA) and Two Scale Model (TSM). The models used for the numerical simulation of bistatic scattering coefficients of clean and polluted sea surface have been analyzed as a function of various acquisition parameters such as (sea state, pollutant type, incidence angle, scattering angle, radar frequency and polarizations).
We present the study and analysis of the variations of the bistatic electromagnetic (EM) signature of the sea surface contaminated by pollutants. Therefore, we start with the numerical analyses of the pollutant effect on the geometrical and physical characteristics of sea surface. Then, we evaluate the EM scattering coefficients of the clean and polluted sea surfaces observed in bistatic configuration by using the numerical forward-backward method. The obtained numerical results of the EM scattering coefficients are studied and given as a function of various parameters: sea state, wind velocity, type of pollutant (sea surface polluted by oil emulsion and sea surface covered by oil layer), incidence and scattering angles, frequencies bands (C, X, and Ku), and radar polarization.
The aim of the work presented in this paper focuses on the study and analysis of variations of the bistatic electromagnetic signature of the sea surface contaminated by pollutants. Therefore, we will start the numerical analyses of the pollutant effect on the geometrical and physical characteristics of sea surface. Then, we will evaluate the electromagnetic (EM) scattering coefficients of the clean and polluted sea surface observed in bistatic configuration by using the numerical Forward-Backward Method (FBM). The obtained numerical results of the electromagnetic scattering coefficients are studied and given as a function of various parameters: sea state, wind velocity, type of pollutant (sea surface polluted by oil emulsion, and sea surface covered by oil layer), incidence and scattering angles, frequencies bands (C, X and Ku) and radar polarization.
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