Optimization of free-moving elements in 2D ultrasound sparse arrays

Bakary Diarra, Marc Robini, Emmanuel Roux, Hervé Liebgott, Christian Cachard, Piero Tortoli

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

1 Citation (Scopus)


The non-grid sparse array technique is a promising approach to overcome the connection difficulties of 2D matrix arrays and to partially compensate the energy loss linked to the element number reduction. Being independent from the spatial sampling conditions, this method leads to a significant improvement of the beam pattern when combined to the simulated annealing algorithm. However, in the previous version of this method [1], the position of the elements cannot be changed during the optimization. In order to add a further degree of freedom and thus to improve the optimization performance, we propose a new strategy in which both element position and apodization can be modified. This new approach improves the sensitivity thanks to a better distribution of the elements on the array footprint.

Original languageEnglish
Title of host publicationIEEE International Ultrasonics Symposium, IUS
PublisherIEEE Computer Society
Number of pages4
ISBN (Electronic)9781479970490
Publication statusPublished - Jan 1 2014
Event2014 IEEE International Ultrasonics Symposium, IUS 2014 - Chicago, United States
Duration: Sept 3 2014Sept 6 2014


Other2014 IEEE International Ultrasonics Symposium, IUS 2014
Country/TerritoryUnited States

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics


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