Optimisation of time reversal processing in titanium inspections

Autor:	Laurent Sandrin, V. Miette, F. Wu, Mathias Fink
Rok vydání:	2002
Předmět:	Signal processing Optics chemistry Iterative method business.industry Computer science Matched filter Electronic engineering Process (computing) chemistry.chemical_element business Beam (structure) Titanium
Zdroj:	1996 IEEE Ultrasonics Symposium. Proceedings.
DOI:	10.1109/ultsym.1996.584058
Popis:	Over the past two years, advances in using the time reversal technique for titanium inspection have been made. Several improvements were developed for the detection of small defects located in the center of large titanium billets. We have conceived a very efficient refocusing process in the receive mode that combines the signals of the first and second time-reversed iterations. We will also show how an optimal choice of the first illumination beam can greatly improve the detection of small defects in deep zones.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b9d2822a67834b07e9993f66a0a11c5b https://doi.org/10.1109/ultsym.1996.584058 Zobrazit plný text záznamu