UWB Radar Noise Reduction for Target Classification

The paper describes a calibration procedure for UWB radar systems in order to measure the frequency-dependent transfer function or radar cross section, respectively, of objects with a high computational efficiency. The benefit of using ultra-wideband pulses is that only one measurement is required for covering several GHz. However, the signal processing steps contain a deconvolution operation producing spike artefacts. They were successfully removed by the calculation of frequency dependent signal-to-noise ratio and a following Wiener filtering. The proposed method was verified by some elementary targets of which the size of the objects were determined.