Pulse compression is often practiced in ultrasound Non Destructive Testing (PDF) systems using chirps. However, chirps are inadequate for setups where multiple probes need to operate concurrently in Multiple Input Multiple Output (PDF) arrangements. Conversely, many coded excitation systems designed for PDF miss some chirp advantages (constant envelope excitation, easiness of bandwidth control, etc.) and may not be easily implemented on hardware originally conceived for chirp excitations. Here, we propose a system based on random-FM excitations, capable of enabling PDF with minimal changes with respect to a chirp-based setup. Following recent results, we show that random-FM excitations retain many advantages of chirps and provide the ability to frequency-shape the excitations matching the transducers features.

From Chirps to Random-FM Excitations in Pulse Compression Ultrasound Systems / Sergio Callegari; Marco Ricci; Salvatore Caporale; Marcello Monticelli; Massimiliano Eroli; Luca Senni; Riccardo Rovatti; Gianluca Setti; Pietro Burrascano. - STAMPA. - (2012), pp. 471-474. (Intervento presentato al convegno 2012 IEEE International Ultrasonics Symposium tenutosi a Dresden nel 7-10 Ottobre 2012) [10.1109/ULTSYM.2012.0117].

From Chirps to Random-FM Excitations in Pulse Compression Ultrasound Systems

CALLEGARI, SERGIO;CAPORALE, SALVATORE;ROVATTI, RICCARDO;
2012

Abstract

Pulse compression is often practiced in ultrasound Non Destructive Testing (PDF) systems using chirps. However, chirps are inadequate for setups where multiple probes need to operate concurrently in Multiple Input Multiple Output (PDF) arrangements. Conversely, many coded excitation systems designed for PDF miss some chirp advantages (constant envelope excitation, easiness of bandwidth control, etc.) and may not be easily implemented on hardware originally conceived for chirp excitations. Here, we propose a system based on random-FM excitations, capable of enabling PDF with minimal changes with respect to a chirp-based setup. Following recent results, we show that random-FM excitations retain many advantages of chirps and provide the ability to frequency-shape the excitations matching the transducers features.
2012
2012 IEEE International Ultrasonics Symposium
471
474
From Chirps to Random-FM Excitations in Pulse Compression Ultrasound Systems / Sergio Callegari; Marco Ricci; Salvatore Caporale; Marcello Monticelli; Massimiliano Eroli; Luca Senni; Riccardo Rovatti; Gianluca Setti; Pietro Burrascano. - STAMPA. - (2012), pp. 471-474. (Intervento presentato al convegno 2012 IEEE International Ultrasonics Symposium tenutosi a Dresden nel 7-10 Ottobre 2012) [10.1109/ULTSYM.2012.0117].
Sergio Callegari; Marco Ricci; Salvatore Caporale; Marcello Monticelli; Massimiliano Eroli; Luca Senni; Riccardo Rovatti; Gianluca Setti; Pietro Burrascano
File in questo prodotto:
Eventuali allegati, non sono esposti

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/151889
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 7
  • ???jsp.display-item.citation.isi??? 3
social impact