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Evaluation of ultrawideband echo data using bispectral processing techniques

Preliminary results are presented from evaluations of ultrawideband (UWB) radar echo signal data, using both bispectral processing and the affine approach of kernel analysis. It appears possible to describe the backscatter properties of radar-absorbing materials and clutter-type materials, raising the prospect of a characterization of material types on the basis of UWB echo signal processing. Because these techniques are effective under low S/N operating conditions, they may be of great practical significance.