Abstract:

A radar signature generation model for ships on time-varying sea surface is proposed. The multipath electromagnetic (EM) scattering model, the time-evolving complex reflection coefficient model for sea surfaces and the ship motion dynamics are developed. A radar signature model for ships over time-evolving sea surface is then established based on the above three models in conjunction with high-frequency asymptotic techniques for EM scattering calculation. The model is validated by measured data for a buoy over sea surface. The time-varying scattering signatures for a typical ship on time-evolving sea surface are simulated and analyzed.