Conference paper
Utilization of multiple frequencies in 3D nonlinear microwave imaging
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.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2012 |
| Pages: | 1776-1779 |
| Proceedings: | 2012 6th European Conference on Antennas and Propagation |
| ISBN: | 145770918X , 145770918x , 1457709198 , 9781457709180 , 9781457709197 , 1457709201 and 9781457709203 |
| Types: | Conference paper |
| DOI: | 10.1109/EuCAP.2012.6206271 |
Image reconstruction Microwave antennas Microwave imaging Microwave measurements Microwave theory and techniques Permittivity
3D DTU microwave imaging system 3D nonlinear microwave imaging biological target imaging biomedical imaging image reconstruction measurement data microwave imaging multifrequency algorithm multiple frequency utilization nonlinear microwave algorithm regularizing effects simulated 2D data
