Journal article
Spatial filters suppress ripple artifacts in the computation of acoustic fields with the angular spectrum method
- Abstract:
- The angular spectrum method (ASM) is an effective tool for propagating wave fields between parallel planes through decomposition of the field into a series of independent plane waves. One source of error is interference from mirror sources introduced through the inherent periodicity of the fast Fourier transform (FFT) used to implement this method numerically. Here, spatial filters attenuate waves propagating at large angles, which are sensitive to mirror sources. Simulations show that this suppresses the ripple artifact whilst preserving the accuracy of the ASM-computed fields. To achieve comparable performance without filtering requires up to a 13.5-fold increase in computation time.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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Access Document
- Files:
-
-
(Preview, Accepted manuscript, pdf, 197.0KB, Terms of use)
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- Publisher copy:
- 10.1121/1.5079637
Authors
- Publisher:
- Acoustical Society of America
- Journal:
- Journal of the Acoustical Society of America More from this journal
- Volume:
- 144
- Issue:
- 5
- Publication date:
- 2018-11-26
- Acceptance date:
- 2018-11-01
- DOI:
- EISSN:
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1520-8524
- ISSN:
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0001-4966
- Pmid:
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30522294
- Language:
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English
- Pubs id:
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pubs:952865
- UUID:
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uuid:ebfd6b10-4dcd-42e8-8026-e610358110ea
- Local pid:
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pubs:952865
- Source identifiers:
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952865
- Deposit date:
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2019-02-05
- ARK identifier:
Terms of use
- Copyright holder:
- Blackmore et al
- Copyright date:
- 2018
- Notes:
- © 2018 Author(s). This is the accepted manuscript version of the article. The final version is available online from Acoustical Society of America at: https://doi.org/10.1121/1.5079637
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