957379.fig.006a
(a)
957379.fig.006b
(b)
957379.fig.006c
(c)
957379.fig.006d
(d)
Figure 6: Reverberation removal based on array measurements containing the flaw echoes. (a) Simulated flaw echo and its multipaths received by the 4th transducer shown in Figure 1. (b) Flaw echo and multipaths added to the reverberation measurement from the 4th transducer. (c) Reverberation removal via subspace projection. (d) Reverberation removal via background subtraction.