Performance evaluation of RCS near-field-to-far-field transformation technique for aircrafts

The performance of the radar cross section (RCS) near-field-to-far-field (NF) transformation technique using Fresnel phase and paraxial approximations is evaluated. The evaluation is conducted by using a 1–20th scaled experimental model and a full-scale numerical 3D-model of an aircraft. The results show that the NF transformation technique is effective for an object with complicated shape, as well as for near-field region closer than the Fresnel region.