Ultrawideband Noise Radar Tomography: Principles, Simulation, and Experimental Validation

Abstract

The paper introduces the principles, simulation results, and hardware implementation of ultrawideband (UWB) noise radar for obtaining tomographic images of various scenarios of rotating cylindrical objects using independent and identically distributed UWB noise waveforms. A UWB noise radar was designed to transmit multiple UWB random noise waveforms over the 3-5 GHz frequency range and to measure the backward scattering data for the validation of the theoretical analysis and numerical simulation results. The reconstructed tomographic images of the rotating cylindrical objects based on experimental results are seen to be in good agreement with the simulation results, which demonstrates the capability of UWB noise radar for complete two-dimensional tomographic image reconstruction of various shaped metallic and dielectric target objects.

Microwave Catheter Navigation System for the Radiofrequency Liver Ablation

“…Various studies are currently in progress dealing with non-invasive tissue temperature monitoring by UWB radar in hyperthermia [ 19 ] or MW tomography in ablation [ 21 , 22 , 23 ]. Progress has also been made in the field of MW detection of breast tumors [ 24 , 25 , 26 , 27 ], in UWB radar tomography [ 28 ], and the field of stroke detection by MW tomography [ 29 , 30 ]. Based on the considerable advances in microwave imaging, it can be assumed that this technology could be used to determine the exact position of the ablation catheter in the patient’s body with high precision.…”