Radar Cross Section Simulation of XQ-58 Valkyrie Like CAD Model

Abstract

The new factor in future air combat is the emergence of armed unmanned aerial vehicle (UAV) swarm. In this article we analyze the radar cross section (RCS) of a XQ-58 Valkyrie like CAD model without its engine and air intake with Multi-Level-Fast-Multipole-Method (MLFMM) algorithm in S-band. We found the boresight RCS at 2 GHz is about −5.39 dBsm, not as small as expected from a true RF stealth fighter, but with adequate radar absorption material (RAM) painted, it can reach the RCS realm of a RF stealth fighter.