Publication detail

Modelling Elastic Wave Propagation Using the k-Wave MATLAB Toolbox

TREEBY, B. JAROŠ, J. ROHRBACH, D. COX, B.

Original Title

Modelling Elastic Wave Propagation Using the k-Wave MATLAB Toolbox

Type

conference paper

Language

English

Original 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.

Keywords

elastic wave, k-Wave, Matlab

Authors

TREEBY, B.; JAROŠ, J.; ROHRBACH, D.; COX, B.

RIV year

2014

Released

31. 8. 2014

Publisher

Institute of Electrical and Electronics Engineers

Location

Chicago, IL

ISBN

978-1-4799-7049-0

Book

IEEE International Ultrasonics Symposium, IUS

Pages from

146

Pages to

149

Pages count

4

URL

http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6931789&tag=1

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"
}

Documents

CONF_15_2014_Treeby_IEEE_kWaveElastic.pdf