Radar signature validation by comparison to measured data

Monostatic radar signature measurement data are compared to CADDSCAT synthetic predictions for a standard set of primitive and complex targets. Prediction accuracy is compared for temporal, spatial, and spectral signature accuracy. The limitations of the CADDSCAT asymptotic predictions are assessed. CADDSCAT´s implementation of the PO (physical optics), ILDC (incremental length diffraction coefficient), and SBR (shooting and bouncing rays) prediction methods is shown to provide excellent first-order radar signature predictions for complex, electrically large targets. The target measurements used have highlighted the limitation of PO-only predictions. The extension of the PO predictions to specular predictions of dielectric-coated targets was validated.<>