Figure 4From: Classification of ground moving targets using bicepstrum-based features extracted from Micro-Doppler radar signatures Bispectrum based features CDFB (4) belonging to one (a), two (b) and three (c) walking persons and their approximation (d) using the 3-order GMM at the level of 3σ . The regions occupied by information features corresponding to different classes overlap; therefore, a sophisticated classifier strategy must be applied.Back to article page