The study of electromagnetic scattering from a moving object above a plane surface based on FDTD

A numerical electromagnetic simulation of a moving object above a plane ground is presented. The method proposed in this paper combines the conventional FDTD (Finite Difference Time Domain) with the equivalent form of relativistic boundary conditions which is based on scattering model. And an accelerated method is proposed to improve the computation efficiency. The electromagnetic scattering problem of a moving perfectly conducting object above the ground can be solved. The scattering from an infinite perfectly conducting surface moving in high speed has been first calculated by this method. And the results of the method are in good agreement with those of the method in literature. Thus the correctness and efficiency of this method is verified. Finally the bistatic scattering coefficients of a two-dimension moving conducting object with various speeds above the plane ground are calculated.