On the Ship Wake Simulation for Multi-Frequncy and Mutli-Polarization SAR Imaging
2018 China International SAR Symposium (CISS)(2018)
摘要
In this paper, computer simulation of SAR (Synthetic Aperture Radar) image of surface-ship wakes is studied. Furthermore, the simulation results of the ship wake are compared at different frequencies and polarizations. The model adopted in the simulation accounts for not only the Kelvin wake produced in the water by the moving ship, but also the influence of the sea surface. The radar back-scatter coefficients of the wake is calculated using the Bragg mechanism. Based on the combination of hydrodynamic and radar scatter calculations, the simulation can provide the backscattering coefficients of the ship wake. Simulation results show that, in general, the backscattering coefficient of ship wake has little dependence on the radar frequency, however, significantly on the polarization.
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关键词
SAR,simulation,ship wake,Ship wake model,sea surface model,Radar scattering model
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