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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Varray, F. Cachard, C. Tortoli, P. Basset, O. |
| Copyright Year | 2011 |
| Description | Author affiliation: Microelectron. Syst. Design Lab., Univ. di Firenze, Florence, Italy (Tortoli, P.) || CREATIS, Univ. de Lyon 1, Villeurbanne, France (Varray, F.; Cachard, C.; Basset, O.) |
| Abstract | The simulation of nonlinear propagation of ultrasound wave in biological tissue is a very time consuming operation. Different simulators, based on finite difference or angular spectrum methods have been reported in the literature and the second one provide faster simulations by considering separately the different harmonics. In this paper we proposed to use a generalized angular spectrum method (GASM) to quickly compute the first three harmonics of the nonlinear field. Moreover, the possible inhomogeneity of the medium is considered in the mathematical background. The GASM has been implemented on a graphic processing unit (GPU) in order to improve the computation time. The obtained results show a good agreement between the GASM and another finite difference nonlinear simulator. In terms of computation time, the GPU implementation allows a speed-up factor comprised between 3.5 and 13 depending on the GPU uses. |
| Sponsorship | IEEE Ultrasonics, Ferroelectrics Frequency Control Soc. |
| Starting Page | 250 |
| Ending Page | 253 |
| File Size | 3764758 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781457712531 |
| ISSN | 19485727 |
| e-ISBN | 9781457712524 |
| DOI | 10.1109/ULTSYM.2011.0061 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-10-18 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Graphics processing unit Harmonic analysis Mathematical model Equations Acoustics Kernel Ultrasonic imaging nonlinear propagation nonlinear simulation inhomogeneous nonlinear parameter |
| Content Type | Text |
| Resource Type | Article |
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