Non-grid based elements positioning for optimal 2D array beams

Bakary Diarra, Herve Liebgott, Christian Cachard, Piero Tortoli

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

2D matrix probes present a real capability for three dimensional ultrasound imaging. The main difficulties to implement these probes come from the need of using a huge number of elements and from the grating lobes linked to the element periodical disposition and from the sidelobes arising when this number is reduced. In this study, a new design technique is proposed and shown capable of considerably reducing the probe element number as well as the grating lobes and sidelobes level. The grating lobes, in particular, are reduced by placing the elements without any grid consideration. The sidelobes and the number of active elements are optimized by the simulated annealing. Using the new approach we reduce the element number by 28% (from 235 to 169) and obtain a grating lobe reduction by-10 dB and-20 dB in lateral and elevation direction, respectively.

Original languageEnglish
Title of host publication2012 IEEE International Ultrasonics Symposium, IUS 2012
DOIs
Publication statusPublished - Dec 1 2012
Event2012 IEEE International Ultrasonics Symposium, IUS 2012 - Dresden, Germany
Duration: Oct 7 2012Oct 10 2012

Other

Other2012 IEEE International Ultrasonics Symposium, IUS 2012
CountryGermany
CityDresden
Period10/7/1210/10/12

Fingerprint

lobes
positioning
sidelobes
gratings
probes
simulated annealing
grids
matrices

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

Cite this

Diarra, B., Liebgott, H., Cachard, C., & Tortoli, P. (2012). Non-grid based elements positioning for optimal 2D array beams. In 2012 IEEE International Ultrasonics Symposium, IUS 2012 [6561933] https://doi.org/10.1109/ULTSYM.2012.0388
Diarra, Bakary ; Liebgott, Herve ; Cachard, Christian ; Tortoli, Piero. / Non-grid based elements positioning for optimal 2D array beams. 2012 IEEE International Ultrasonics Symposium, IUS 2012. 2012.
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Diarra, B, Liebgott, H, Cachard, C & Tortoli, P 2012, Non-grid based elements positioning for optimal 2D array beams. in 2012 IEEE International Ultrasonics Symposium, IUS 2012., 6561933, 2012 IEEE International Ultrasonics Symposium, IUS 2012, Dresden, Germany, 10/7/12. https://doi.org/10.1109/ULTSYM.2012.0388

Non-grid based elements positioning for optimal 2D array beams. / Diarra, Bakary; Liebgott, Herve; Cachard, Christian; Tortoli, Piero.

2012 IEEE International Ultrasonics Symposium, IUS 2012. 2012. 6561933.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Diarra B, Liebgott H, Cachard C, Tortoli P. Non-grid based elements positioning for optimal 2D array beams. In 2012 IEEE International Ultrasonics Symposium, IUS 2012. 2012. 6561933 https://doi.org/10.1109/ULTSYM.2012.0388