INTERPRETATION OF A DYNAMIC RADAR CROSS-SECTION USING THE WAVELET TRANSFORM

The wavelet analysis technique is applied to obtain instantaneous time -frequency information from dynamic radar cross-section data, since th e dynamic electromagnetic backscattered signals contain both time and frequency information. The multiresolution property of the wavelet tra nsform (WT) is well suited to analysing such time-varying signals. Exa mples of the analysis for a generic missile target are presented. Resu lts from the short-time Fourier transform and WT are used to interpret the backscattered radar response to the motion states of a missile ta rget.