Title :
Development of a Time Domain Microwave System for Medical Diagnostics
Author :
Xuezhi Zeng ; Fhager, Andreas ; Zhongxia He ; Persson, Mats ; Linner, Peter ; Zirath, Herbert
Author_Institution :
Dept. of Signals & Syst., Chalmers Univ. of Technol., Gothenburg, Sweden
Abstract :
In this paper, a time-domain system dedicated to medical diagnostics has been designed, a prototype has been built and its performance has been evaluated. Measurements show that the system has a 3-dB bandwith of about 3.5 GHz and a signal to noise ratio over 40 dB in the frequency range about 800 MHz to 3.8 GHz. The system has been used to perform a microwave tomographic image reconstruction test. The same target was reconstructed based on data measured with a network analyzer. A comparison between the images shows very small differences, and proves the functionality of the time domain system.
Keywords :
biomedical imaging; image denoising; image reconstruction; medical image processing; microwave imaging; time-domain analysis; data measurement; frequency 800 MHz to 3.8 GHz; medical diagnostics; microwave tomographic image reconstruction testing; network analyzer; signal-to-noise ratio; time domain microwave system development; time-domain system functionality; Medical diagnosis; Microwave imaging; Microwave measurement; Microwave sensors; Signal to noise ratio; Time-domain analysis; Ultra wideband technology; Microwave imaging; time domain measurements; ultrawideband (UWB); ultrawideband (UWB).;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2014.2326277
