Application of Radar Cross Section to Far-field Damage Detection

In this paper, radar cross section is applied to the damage detection of a triangular metal flat plate of a simplified model of a missile tail. Set the frequency, pitch and azimuth of the incident wave in the electromagnetic simulation software FEKO, and perform RCS simulation under the irradiation of the far-field plane wave. By observing the variation of the RCS with the simulation curves of θ and φ at the single frequency point of 40 GHz of the metal plate, the approximate location and the size of the damage of the metal plate are determined. This method has important reference value for the study of far-field damage detection of electrically large-scale targets.