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Numerical microlocal analysis of harmonic wavefields
KTH, Superseded Departments, Numerical Analysis and Computer Science, NADA.ORCID iD: 0000-0002-6321-8619
2004 (English)In: Journal of Computational Physics, ISSN 0021-9991, E-ISSN 1090-2716, Vol. 199, no 2, 717-741 p.Article in journal (Refereed) Published
Abstract [en]

We present and test a numerical method which, given an analytical or numerical solution of the Helmholtz equation in a neighborhood of a fixed observation point and assuming that the geometrical optics approximation is relevant, determines at this point the number of crossing rays and computes their directions and associated complex amplitudes.

Place, publisher, year, edition, pages
2004. Vol. 199, no 2, 717-741 p.
Keyword [en]
geometrical optics, microlocal analysis, Helmholtz equation, planar aperture distributions, geometrical theory, beam algorithm, formulation, scattering, diffraction, radiation
URN: urn:nbn:se:kth:diva-23766DOI: 10.1016/ 000224142100013OAI: diva2:342465
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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Runborg, Olof
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ReferencesLink to record
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