Utilization of multiple frequencies in 3D nonlinear microwave imaging
Paper in proceeding, 2012

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.


P. D. Jensen

Technical University of Denmark (DTU)

Tonny Rubaek

Chalmers, Signals and Systems, Signal Processing and Biomedical Engineering

J. J. Mohr

Technical University of Denmark (DTU)

Proceedings of 6th European Conference on Antennas and Propagation, EuCAP 2012. Prague, 26-30 March 2012

978-145770918-0 (ISBN)

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering





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