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Conference Paper: 3D inhomogeneous inversion for microwave imaging using distorted born iterative method and BCG-FFT

Title3D inhomogeneous inversion for microwave imaging using distorted born iterative method and BCG-FFT
Authors
Issue Date1995
Citation
Ieee Antennas And Propagation Society, Ap-S International Symposium (Digest), 1995, v. 3, p. 1614-1617 How to Cite?
AbstractThe computational efficiency in 3D microwave inversion is addressed by extending the idea in a recent paper for 2D problems to 3D vector fields. The method proposed here is based on recently developed fast computation algorithm for 3D dielectric scattered field. This fast algorithm combines biconjugate gradient method with fast Fourier transform (BCG-FFT). A weighted mean square residual combined with Tikhonov regularization is used to measure the goodness of the reconstructed results and the optimal solution is searched iteratively using a conjugate gradient procedure. The computational complexity of the inverse process is analyzed when the BCG-FFT algorithm is used to implement the operations of the Frechet derivative operator. Some computer simulation results demonstrate the efficiency of this algorithm, especially when the number of illumination angles is limited.
Persistent Identifierhttp://hdl.handle.net/10722/182844
ISSN

 

DC FieldValueLanguage
dc.contributor.authorGan, Hongen_US
dc.contributor.authorChew, Weng Choen_US
dc.date.accessioned2013-05-02T05:17:18Z-
dc.date.available2013-05-02T05:17:18Z-
dc.date.issued1995en_US
dc.identifier.citationIeee Antennas And Propagation Society, Ap-S International Symposium (Digest), 1995, v. 3, p. 1614-1617en_US
dc.identifier.issn0272-4693en_US
dc.identifier.urihttp://hdl.handle.net/10722/182844-
dc.description.abstractThe computational efficiency in 3D microwave inversion is addressed by extending the idea in a recent paper for 2D problems to 3D vector fields. The method proposed here is based on recently developed fast computation algorithm for 3D dielectric scattered field. This fast algorithm combines biconjugate gradient method with fast Fourier transform (BCG-FFT). A weighted mean square residual combined with Tikhonov regularization is used to measure the goodness of the reconstructed results and the optimal solution is searched iteratively using a conjugate gradient procedure. The computational complexity of the inverse process is analyzed when the BCG-FFT algorithm is used to implement the operations of the Frechet derivative operator. Some computer simulation results demonstrate the efficiency of this algorithm, especially when the number of illumination angles is limited.en_US
dc.languageengen_US
dc.relation.ispartofIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)en_US
dc.title3D inhomogeneous inversion for microwave imaging using distorted born iterative method and BCG-FFTen_US
dc.typeConference_Paperen_US
dc.identifier.emailChew, Weng Cho: wcchew@hku.hken_US
dc.identifier.authorityChew, Weng Cho=rp00656en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0029192502en_US
dc.identifier.volume3en_US
dc.identifier.spage1614en_US
dc.identifier.epage1617en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridGan, Hong=36807480800en_US
dc.identifier.scopusauthoridChew, Weng Cho=36014436300en_US

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