Study of Various Excitation and Reference Signals for Pulsed Correlation-based Ultrasound Signal Processing
Ultrasound Lamb waves are used for health monitoring of composite structures. Received signals are correlated by windowed bursts of excitation signal to find time-of-flight and parameters of the received waveforms. In current paper modifications of excitations signals and reference signals are studied, emulations with using a PC-based measurement experimental setup with a composite plate and piezo-sensors are carried out. The study shows the ways of improvement of correlation-based signal processing accuracy, for finding the signal envelopes more precisely, from one side, and possible simplifications of the signal waveforms and signal processing from other side, to make the solutions more practical for implementations.
How to Cite
The copyright for the paper in this journal is retained by the author(s) with the first publication right granted to the journal. The authors agree to the Creative Commons Attribution 4.0 (CC BY 4.0) agreement under which the paper in the Journal is licensed.
By virtue of their appearance in this open access journal, papers are free to use with proper attribution in educational and other non-commercial settings with an acknowledgement of the initial publication in the journal.