Figure 6
From: Coherent CFAR detection in compound Gaussian clutter with inverse gamma texture
Performance of the CFAR detector (17) in HH-polarised IPIX trial-based clutter. The left subplot is for N=30,ρ=0.4 and a false alarm probability of 10−6. It has been assumed that the shape parameter α has been overestimated by 50%, while the scale parameter is overestimated by 5 times its actual value. The plot shows that the new CFAR has very good performance despite parameter estimation inaccuracy. The right subplot is for N=25,ρ=0.7 and a false alarm probability of 10−7. Both clutter parameters are assumed to be underestimated by 20%. Here, we observe that the CFAR (17) has a very small loss relative to the ANMF, and both these two new detectors have the best performance.