Performance Comparison of Time-Frequency Analysis Methods for Radar Signature Analysis

In this paper, four different time-frequency analysis techniques are applied to the scattering analysis of radar targets. Short-time fourier transform (STFT), continuous wavelet transform (CWT), adaptive wavelet transform (AWT) and evolutionary AWT (EAWT) are applied to scattering analysis. The two scattering phenomenon which are important for radar target signature analysis are scattering centers and resonance frequencies. In the simulation using wire target (Caravelle-like) data, the comparisons of four different time-frequency analysis techniques are presented. The results show that the EAWT is the best technique to analyze the scattering centers and resonance frequency simultaneously.