Normalized Radar Scattering Section Simulation and Numerical Calculation of Freak Wave

The improved phase modulation method is used to numerically simulate a two-dimensional freak wave. While generating waves at specific positions, the spectral structure of target spectrum can also be maintained, and statistical characteristics wave sequences satisfied. numerical simulation process discussed in detail from perspective different spectra other parameters, priority applicability Joint North Sea Wave Project (JONSAWP) determined, accuracy significantly improved. At same time, electromagnetic scattering are studied based on two-scale (TSM). calculation results normalized radar cross section (NRCS) under polarization modes compared, effects wind speed, incident frequency, angle discussed. Experiments show that NRCS obviously lower than background wave, relatively simple. This provides an effective reference for detection offshore engineering.