Coherent multi-transducer ultrasound (CoMTUS) creates an extended effective aperture through the coherent combination of multiple arrays. In this study, for the first time, CoMTUS is experimentally implemented and demonstrated in 3-D using two synchronized ULA-OP 256 systems controlling a pair of 2-D sparse arrays. Results show that, in comparison to a single dense spiral array system using the same total number of active elements, the proposed CoMTUS system formed by two 2-D 256-element sparse spiral arrays leads to significant improvements in spatial resolution, in the direction where both arrays are aligned, and higher contrast-to-noise-ratio and generalized contrast-to-noise-ratio.
Experimental demonstration of the coherent use of two sparse arrays for 3-D imaging / Peralta, Laura; Mazierli, Daniele; Gomez, Alberto; Hajnal, Joseph V; Tortoli, Piero; Ramalli, Alessandro. - ELETTRONICO. - (2022), pp. 1-4. (Intervento presentato al convegno 2022 IEEE International Ultrasonics Symposium (IUS)) [10.1109/IUS54386.2022.9958667].
Experimental demonstration of the coherent use of two sparse arrays for 3-D imaging
Mazierli, Daniele;Tortoli, Piero;Ramalli, Alessandro
2022
Abstract
Coherent multi-transducer ultrasound (CoMTUS) creates an extended effective aperture through the coherent combination of multiple arrays. In this study, for the first time, CoMTUS is experimentally implemented and demonstrated in 3-D using two synchronized ULA-OP 256 systems controlling a pair of 2-D sparse arrays. Results show that, in comparison to a single dense spiral array system using the same total number of active elements, the proposed CoMTUS system formed by two 2-D 256-element sparse spiral arrays leads to significant improvements in spatial resolution, in the direction where both arrays are aligned, and higher contrast-to-noise-ratio and generalized contrast-to-noise-ratio.I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.