Realistic acoustic simulation of 2-D probe elements in simulated annealing sparse array optimization

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

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

4 Citations (Scopus)

Abstract

In this study, the benefits of integrating a realistic acoustic simulation in the 2-D non-grid sparse array design are investigated. A wideband shape sensitive (WSS) energy function is introduced. New degrees of freedom in 2-D arrays transducer optimization are thus made available. A related consequence is the capability of distinguishing probes configurations so far considered as performing identically. To clearly illustrate this, we compare the radiated patterns of two 5×5 elements array probes having elements with the same rectangular size and position, but perpendicular orientations. Under linear assumption, an ergonomic data management, here named Fixy method, enables the radiated pattern computation during the optimization process thanks to a 4.8 times speed-up. Finally two optimized probes are compared with an equivalent size full-array. One was optimized using the omnidirectional monochromatic model and the other one using the proposed WSS energy function. To consider the same acoustic radiation of the probe during the optimization as in reality yields promising results.

Original languageEnglish
Title of host publicationIEEE International Ultrasonics Symposium, IUS
PublisherIEEE Computer Society
Pages2125-2128
Number of pages4
ISBN (Electronic)9781479970490
DOIs
Publication statusPublished - Oct 20 2014
Event2014 IEEE International Ultrasonics Symposium, IUS 2014 - Chicago, United States
Duration: Sep 3 2014Sep 6 2014

Other

Other2014 IEEE International Ultrasonics Symposium, IUS 2014
CountryUnited States
CityChicago
Period9/3/149/6/14

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All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

Cite this

Roux, E., Diarra, B., Robini, M., Cachard, C., Tortoli, P., & Liebgott, H. (2014). Realistic acoustic simulation of 2-D probe elements in simulated annealing sparse array optimization. In IEEE International Ultrasonics Symposium, IUS (pp. 2125-2128). [6931817] IEEE Computer Society. https://doi.org/10.1109/ULTSYM.2014.0529