Calibration methods for wideband forward RCS measurements

Calibration is an important part in all radar cross section measurements. Two different approaches to the calibration of forward and extinction cross section measurements are therefore evaluated and discussed in this paper. The first method is the commonly used calibration method employing a calibration target with a known cross section while the second calibration method does not require a calibration target. It is concluded that the method utilizing a calibration target is the most accurate method of the two.