Utilization of multiple frequencies in 3D nonlinear microwave imaging

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2012

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The use of multiple frequencies in a nonlinear microwave algorithm is considered. Using multiple frequencies allows for obtaining the improved resolution available at the higher frequencies while retaining the regularizing effects of the lower frequencies. However, a number of different challenges arise when using data from multiple frequencies for imaging of biological targets. In this paper, the performance of a multi-frequency algorithm, in which measurement data from several different frequencies are used at once, is compared with a stepped-frequency algorithm, in which images reconstructed at lower frequencies are used as starting guesses for reconstructions at higher frequencies. The performance is illustrated using simulated 2-D data and data obtained with the 3-D DTU microwave imaging system.
Original languageEnglish
Title2012 6th European Conference on Antennas and Propagation
PublisherIEEE
Publication date2012
Pages1776 - 1779
ISBN (print)978-1-4577-0918-0
ISBN (electronic)978-1-4577-0919-7
DOIs
StatePublished

Conference

Conference2012 6th European Conference on Antennas and Propagation
CountryCzech Republic
CityPrague
Period26/03/1230/03/12
CitationsWeb of Science® Times Cited: No match on DOI

Keywords

  • Image reconstruction, Microwave antennas, Microwave imaging , Microwave measurements, Microwave theory and techniques , Permittivity
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