Title :
Array configurations of a UWB near field imaging system for the detection of water accumulation in human body
Author :
Li, Xuyang ; Jalilvand, Malyhe ; Zwirello, Lukasz ; Zwick, Thomas
Author_Institution :
Inst. fur Hochfrequenztech. und Elektron., Karlsruhe Inst. of Technol., Karlsruhe, Germany
Abstract :
In medical field, the reflected UWB signals from the boundaries of human tissues with high contrast of dielectric properties are utilized. In this paper, a synthetic aperture-based microwave near field imaging system using UWB signal for the detection of water accumulation in human body (such as urine in the human bladder, water accumulation in lung or stomach) is proposed. Rectangular and circular array configurations are compared with respect to the cross-range resolution and signal- to-clutter ratio of the images. The imaging system is investigated both in a simulation model with regards to dielectric properties of various human tissues and is further verified through measurements with a phantom model. The results show the preference of rectangular array configuration due to its superior performance as well as its ease of realization and the potential of this imaging system for the detection of water accumulation in human body.
Keywords :
dielectric properties; image resolution; medical image processing; microwave imaging; UWB near field imaging system; UWB signals; circular array configurations; cross-range resolution; dielectric properties; human bladder; human body; human tissues; phantom model; rectangular array configurations; signal-to-clutter ratio; synthetic aperture-based microwave near field imaging system; water accumulation detection; Antenna measurements; Apertures; Arrays; Image resolution; Imaging; Thyristors; UWB imaging; Ultra Wideband; array configuration; human body; synthetic aperture; water accumulation;
Conference_Titel :
Radar Conference (EuRAD), 2011 European
Conference_Location :
Manchester
Print_ISBN :
978-1-4577-1156-5
