Radar waveform design and target detection using wavelets

The projection of the conventional radar waveform in wavelet space is comparatively complex, which complicated the wavelet decomposition of the radar waveform. A novel radar waveform design method is proposed. The proposed approach uses the wavelet function of a specific scale as the waveform and thus the inter-dependency of the wavelet coefficients in different subspaces is reduced. Better detection performance is achieved when only two wavelet decomposition coefficients are used. Through theoretical analysis and simulation results it is shown that the proposed approach has improved adaptation to non-stationary noise and the echos of the large target has a smaller negative effect on the adjacent range cell.