Title :
Feasibility study of an ultra wideband Pseudo-Noise-radar for medical applications
Author :
Li, Xuyang ; Scherr, Steffen ; Wu, Huaming ; Pancera, Elena ; Zwick, Thomas
Author_Institution :
Inst. fur Hochfrequenztech. und Elektron., KIT, Karlsruhe, Germany
Abstract :
An ultra wideband PN-radar for medical imaging applications is proposed. To detect water accumulation inside of the human body, e.g. the bladder, the radar signal undergoes multi-reflections and strong attenuation in human tissues. To fulfil the required high system dynamic range due to the signal attenuation in human tissues, a PN signal with order of 14 is used for the investigation. A demonstrator and a simulation model of a PN-radar are shown. The proposed PN-radar works with a chip rate of 2 GHz and therefore the signal is spread from 4 to 8 GHz after a mixer with LO frequency of 6 GHz. The influence of different SNRs and dispersion effects on the PN Signal are investigated. By comparing the PN-radar measurements with a Gauss pulse radar in a multiple targets scenario the proper function of the realized radar is demonstrated.
Keywords :
biological tissues; medical image processing; microwave imaging; radar imaging; ultra wideband radar; feasibility study; frequency 2 GHz; frequency 4 GHz to 8 GHz; human body; human tissues; medical imaging applications; radar signal; simulation model; ultrawideband pseudo- noise-radar; Biomedical equipment; Correlation; Dynamic range; Humans; Medical services; Radar; Reflection;
Conference_Titel :
Antennas and Propagation (EUCAP), Proceedings of the 5th European Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4577-0250-1
