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Conference Paper: Evaluation of singular fourier coefficients in solving electromagnetic scattering by body of revolution

TitleEvaluation of singular fourier coefficients in solving electromagnetic scattering by body of revolution
Authors
Issue Date2008
Citation
Radio Science, 2008, v. 43 n. 4 How to Cite?
AbstractWe develop an efficient evaluation scheme for the singular Fourier coefficients in solving electromagnetic scattering by body of revolution (BOR). For the singular modal Green's function (MGF), the scheme first evaluates the integrals over generating arc segments analytically and then distinguishes the singular part from the regular part for the integral over the angle in the revolution direction. This allows us to avoid the approximate calculation for the elliptical integral and the separated singular part is exactly evaluated in a closed form. For the singular MGF's derivatives generated from the gradient of the Green's function, we subtract the kernels with more similar singular integrands in the vicinity of singularity so that the kernels are better regularized. The procedure differs from the existent Glisson's method in several aspects and numerical experiments show that the scheme is simpler in implementation and more efficient for calculation. Copyright 2008 by the American Geophysical Union.
Persistent Identifierhttp://hdl.handle.net/10722/183019
ISSN
2015 Impact Factor: 1.273
2015 SCImago Journal Rankings: 1.072
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorTong, MSen_US
dc.contributor.authorChew, WCen_US
dc.date.accessioned2013-05-02T05:18:07Z-
dc.date.available2013-05-02T05:18:07Z-
dc.date.issued2008en_US
dc.identifier.citationRadio Science, 2008, v. 43 n. 4en_US
dc.identifier.issn0048-6604en_US
dc.identifier.urihttp://hdl.handle.net/10722/183019-
dc.description.abstractWe develop an efficient evaluation scheme for the singular Fourier coefficients in solving electromagnetic scattering by body of revolution (BOR). For the singular modal Green's function (MGF), the scheme first evaluates the integrals over generating arc segments analytically and then distinguishes the singular part from the regular part for the integral over the angle in the revolution direction. This allows us to avoid the approximate calculation for the elliptical integral and the separated singular part is exactly evaluated in a closed form. For the singular MGF's derivatives generated from the gradient of the Green's function, we subtract the kernels with more similar singular integrands in the vicinity of singularity so that the kernels are better regularized. The procedure differs from the existent Glisson's method in several aspects and numerical experiments show that the scheme is simpler in implementation and more efficient for calculation. Copyright 2008 by the American Geophysical Union.en_US
dc.languageengen_US
dc.relation.ispartofRadio Scienceen_US
dc.titleEvaluation of singular fourier coefficients in solving electromagnetic scattering by body of revolutionen_US
dc.typeConference_Paperen_US
dc.identifier.emailChew, WC: wcchew@hku.hken_US
dc.identifier.authorityChew, WC=rp00656en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1029/2007RS003755en_US
dc.identifier.scopuseid_2-s2.0-70350020757en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-70350020757&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume43en_US
dc.identifier.issue4en_US
dc.identifier.isiWOS:000258002100001-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridTong, MS=11839685700en_US
dc.identifier.scopusauthoridChew, WC=36014436300en_US

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