Performance analysis of various UWB radar approaches for medical diagnostics

In this paper, the challenge of the UWB radar for medical applications is presented in terms of high signal attenuation and multiple reflections in human tissues. Different UWB radar approaches are reviewed in this research. The IR-UWB approaches, the PN approach and the frequency measurement with the Vector Network Analyzer are introduced and discussed. Furthermore, the demonstrators of all of the three approaches are provided. The system performance of these three approaches are verified by measurements in anechoic chamber. The usage of three radar approaches for medical diagnostics are given. The measurement results show that the frequency measurement with the Vector Network Analyzer performs better than the other two approaches in terms of system dynamic range and stability.