Conclusions
The Directivity Spectrum approach presented here provides a convenient and efficient method to simulate transient acoustic fields propagating in homogenous media. Simulation output directly provides spatial ‘snapshots’ of the acoustic field at particular time instants. Attenuation and velocity dispersion are easily incorporated. Propagation both forwards and backwards to any location is easily accomplished without accumulation of numerical errors with propagation distance. The boundary conditions for the approach may be provided by other methods (such as finite element models). The technique then provides a tool for rapidly calculating subsequent propagation in ‘real’ homogenous media, free from accumulation of numerical errors. Only results of simple geometries have been presented here to enable direct comparison with well known theoretical results, although the approach is applicable to arbitrary geometries.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
A. J. Healey, S. Leeman, and J. P. Weight, Space-Time Imaging &Transient Ultrasound Fields, Int J Imaging Syst Technol, 8 45–51, 1997.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2002 Kluwer Academic Publishers
About this chapter
Cite this chapter
Leeman, S., Healey, A.J., Weight, J.P. (2002). A New Approach for Calculating Wideband Fields. In: Lee, H. (eds) Acoustical Imaging. Acoustical Imaging, vol 24. Springer, Boston, MA. https://doi.org/10.1007/0-306-47108-6_7
Download citation
DOI: https://doi.org/10.1007/0-306-47108-6_7
Publisher Name: Springer, Boston, MA
Print ISBN: 978-0-306-46518-5
Online ISBN: 978-0-306-47108-7
eBook Packages: Springer Book Archive