Measurement and Signal Processing Techniques for Extracting Highly Accurate and Wideband RCS

This paper discusses both test setup and signal processing techniques to achieve highly accurate radar cross section (RCS) measurements across a wide bandwidth. These methods include calibration, clutter cancellation, and time-gating algorithms in post-processing and test setup hardware modifications to improve measurement quality. By upgrading the measurement setup hardware and applying optimized processing techniques, the RCS average error is reduced from 3.2 dBsm to only 0.21 dBsm across the 2-18 GHz frequency range.