The assessment finds that standard TOA methods detect both symmetric and anti-symmetric Lamb modes in noise-free simulations, with noise mainly affecting early symmetric arrivals, and introduces frequency-domain thresholding in CWT plus local-minima AIC to improve robustness.
A novel differential time-of-arrival estimation technique for impact localization on carbon fiber laminate sheets
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Assessment of Time-of-Arrival Estimation Methods for Impact Detection in Isotropic Plates using Piezoceramic Sensors
The assessment finds that standard TOA methods detect both symmetric and anti-symmetric Lamb modes in noise-free simulations, with noise mainly affecting early symmetric arrivals, and introduces frequency-domain thresholding in CWT plus local-minima AIC to improve robustness.