Utilization of multiple frequencies in 3D nonlinear microwave imaging
Publication: Research - peer-review › Article in proceedings – Annual report year: 2012
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Utilization of multiple frequencies in 3D nonlinear microwave imaging. / Jensen, Peter Damsgaard; Rubæk, Tonny; Mohr, Johan Jacob.
In: 2012 6th European Conference on Antennas and Propagation. IEEE, 2012. p. 1776 - 1779 .Publication: Research - peer-review › Article in proceedings – Annual report year: 2012
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TY - GEN
T1 - Utilization of multiple frequencies in 3D nonlinear microwave imaging
A1 - Jensen,Peter Damsgaard
A1 - Rubæk,Tonny
A1 - Mohr,Johan Jacob
AU - Jensen,Peter Damsgaard
AU - Rubæk,Tonny
AU - Mohr,Johan Jacob
PB - IEEE
PY - 2012
Y1 - 2012
N2 - 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.
AB - 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.
KW - Image reconstruction
KW - Microwave antennas
KW - Microwave imaging
KW - Microwave measurements
KW - Microwave theory and techniques
KW - Permittivity
U2 - 10.1109/EuCAP.2012.6206271
DO - 10.1109/EuCAP.2012.6206271
SN - 978-1-4577-0918-0
BT - 2012 6th European Conference on Antennas and Propagation
T2 - 2012 6th European Conference on Antennas and Propagation
SP - 1776
EP - 1779
ER -