Comparison of the Kirchhoff Model and the IEM Model for Rough Surface Scattering Using Numerical Simulation

摘要

The validity of the Kirchhoff approximation and IEM model for rough perfect conducting surface scattering is examined by comparison with simulation results obtained by solving integral equations. First, the surface current and scattering field of approximation for surfaces with different surface length, different root-mean-square (rms) surface height and wavelength is compared with solving integral equations. Then, scattering coefficient calculated from approximation and Monte Carlo simulation is compared. At last, the data that we get above will be discussed and some result will be given.