A Baseline-Free Lamb Wave Damage Localization Method Based on Compressed Sensing

Figure 16

Damage probability distribution obtained by (a) direct accumulation, (b) cumulative multiplication, and (c) combining amplitude addition and multiplication. (d) Result (c) after −3 dB threshold processing (“+” is the local maximum of the damage probability, the order of magnitude of which has been marked by the numbers 1–4).

(a)

(b)

(c)

(d)