Title :
Optimized FDTD Schemes for 3-D Acoustic Wave Propagation
Author_Institution :
Acoust. Group, Univ. of Edinburgh, Edinburgh, UK
fDate :
7/1/2012 12:00:00 AM
Abstract :
Finite difference time-domain simulation methods in acoustics applications have seen increased interest recently. The simplest scheme exhibits various weaknesses, such as numerical dispersion and anisotropy. More general parameterized families of schemes are explored here, with a view towards reducing such numerical artefacts through optimization. Numerical results are presented.
Keywords :
acoustic wave propagation; finite difference time-domain analysis; 3D acoustic wave propagation; FDTD scheme optimization; anisotropy; finite difference time-domain simulation methods; general parameterized families; numerical artefacts; numerical dispersion; Anisotropic magnetoresistance; Approximation methods; Dispersion; Finite difference methods; Propagation; Three dimensional displays; Time domain analysis; Finite difference schemes; finite difference time-domain (FDTD) method; room modeling;
Journal_Title :
Audio, Speech, and Language Processing, IEEE Transactions on
DOI :
10.1109/TASL.2012.2186806
