Dynamic radar cross section measurements of a full-scale aircraft for RCS modelling validation

Abstract

In this paper the process followed in generating a high fidelity reference data set for radar cross section (RCS) modelling validation for a full-scale aircraft, is presented. An overview of two dynamic RCS measurement campaigns, involving both single and stepped frequency operation, is provided and specific attention is given to calibration and the use of multibin stepped frequency processing for such measurements. Some of the challenges are noted and a preliminary comparison between the measured and calculated high range resolution profiles is presented. The results show that the data are of sufficient quality to enable future RCS modelling validation work.