… This study aims to improve the in situ structural health monitoring method to localize the
impact source and determine the Lamb flexural mode A0 velocity in composite structures
with unknown stacking and cross-section. The algorithm is based on the differences in stress
waves that can be detected by a finite number of sensors and is divided into two stages. In
the first stage, the squared modulus of the continuous wavelet transform, which ensures high
accuracy of the timefrequency analysis of acoustic … Analysis of the calculation results for …