Ultrawideband noise synthetic aperture radar: theory and experiment

The authors demonstrate the ability of the ultra-wideband random noise radar to be used as a SAR imagery instrument. Experimentation with processing data collected over different angles clearly shows that theoretical cross-range and slant-range resolution are achieved. It was also observed that, due to the waveform structure end ´boom-SAR´ geometry, cross-range walk can be a problem, especially in short-range measurements. Special post-processing methods (such as coherent summing sub-arrays of partitioned and separately processed narrower angle data sets) are under investigation to reduce distortions.