RCS calculation of complex targets shielded with plasma based on visual GRECO method

Based on the assumption that plasma medium is cold, unmagnetized, collisional and inhomogeneous, a radar cross section (RCS) calculation model for complex targets shielded with plasma is presented. In high frequency region, the plasma that defilading a target can be treated as layered media. In each layer, the plasma is equivalent to a uniform dielectric. Physics optics (PO), ray-tracing method and Wentzel-Kramer-Brillouin (WKB) method are applied to calculate the backscattering field, which is implemented by visual graphical electromagnetic computing (GRECO) platform. Numerical results illustrate that shielding the targets with plasma is a valid way to reduce the RCS of targets. This conclusion has a broad prospect for plasma stealth and anti stealth.