Publication Details

Modelling Elastic Wave Propagation Using the k-Wave MATLAB Toolbox

TREEBY, B.; JAROŠ, J.; ROHRBACH, D.; COX, B. Modelling Elastic Wave Propagation Using the k-Wave MATLAB Toolbox. In IEEE International Ultrasonics Symposium, IUS. Chicago, IL: Institute of Electrical and Electronics Engineers, 2014. p. 146-149. ISBN: 978-1-4799-7049-0.
Czech title
Modelovaní šíření elastického vlnění pomocí k-Wave toolboxu
Type
conference paper
Language
English
Authors
Treeby Bradley
Jaroš Jiří, doc. Ing., Ph.D. (DCSY)
Rohrbach Daniel (FIT)
Cox Ben (FIT)
URL
Keywords

elastic wave, k-Wave, Matlab

Abstract

A new model for simulating elastic wave propagation using the open-source k-Wave MATLAB Toolbox is described. The model is based on two coupled first-order equations describing the stress and particle velocity within an isotropic medium. For absorbing media, the Kelvin-Voigt model of viscoelasticity is used. The equations are discretised in 2D and 3D using an efficient time-stepping pseudospectral scheme. This uses the Fourier collocation spectral method to compute spatial derivatives and a leapfrog finite-difference scheme to integrate forwards in time. A multi-axial perfectly matched layer (M-PML) is implemented to allow free-field simulations using a finite-sized computational grid. Acceleration using a graphics processing unit (GPU) is supported via the MATLAB Parallel Computing Toolbox. An overview of the simulation functions and their theoretical and numerical foundations is described.

Published
2014
Pages
146–149
Proceedings
IEEE International Ultrasonics Symposium, IUS
ISBN
978-1-4799-7049-0
Publisher
Institute of Electrical and Electronics Engineers
Place
Chicago, IL
DOI
10.1109/ULTSYM.2014.0037
UT WoS
000352792500037
EID Scopus
2-s2.0-84910026067
BibTeX 
@inproceedings{BUT111641,
  author="Bradley {Treeby} and Jiří {Jaroš} and Daniel {Rohrbach} and Ben {Cox}",
  title="Modelling Elastic Wave Propagation Using the k-Wave MATLAB Toolbox",
  booktitle="IEEE International Ultrasonics Symposium, IUS",
  year="2014",
  pages="146--149",
  publisher="Institute of Electrical and Electronics Engineers",
  address="Chicago, IL",
  doi="10.1109/ULTSYM.2014.0037",
  isbn="978-1-4799-7049-0",
  url="http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6931789&tag=1"
}
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