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Mandatory Fields
Publication Subcategory
Other
Authors
Van Dongen, KWA,Brennan, C,Wright, WMD
Year
2007
Month
January
Article Title
Reduced forward operator for electromagnetic wave scattering problems
Researcher's Role
Status
Validated
Peer Reviewed
1
Times Cited
()
Optional Fields
Keywords
VOLUME INTEGRAL-EQUATION OBJECTS 3-D FFT
Short Description
Abstract
The paper describes a reduced forward operator for solving electromagnetic scattering problems using a volume integral equation in conjunction with a conjugate gradient fast Fourier transform scheme. The reduction is obtained by decoupling of the interaction between the locations in the spatial computational domain at which there is non-zero contrast and those positions at which there is zero contrast. The decoupling is achieved by multiplication of the kernel by a diagonal matrix whose entries reflect the presence or absence of contrast at the associated point. Analysis supported by numerical experiments shows that the conjugate gradient algorithm applied to the reduced system converges more rapidly than when it is applied to the original system.
Publisher Location
Publisher
Editors
ISBN / ISSN
Edition
URL
Start Page
57
End Page
62
DOI Link
DOI 10.1049/iet-smt:20060023
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Funding Body
Grant Details