Bistatic RCS Calculations of Complex Realistic Targets Using Asymptotic Methods

摘要

Bistatic radar cross section (RCS) can improve target detection and identification due to increased target information. Calculating the bistatic scattering of electrically large targets by using asymptotic computational electromagnetic methods is important as these methods provide a suitable alternative to measurements and full-wave simulations. Measurements and fullwave simulations can be impractical due to high cost associated with maintenance of the measurement facilities, long lead times and high computational requirements. The accuracy of physical optics and geometrical optics to calculate the bistatic RCS of two electrically large realistic aircraft targets is investigated in this paper. These two methods are compared to the full-wave multi-level fast multipole method.