Software defined radio for medical applications

A portable, cheap and accurate system is necessary for pre-hospital diagnosis, and recently software defined radio technology (SDR), has attracted the interest of researchers for these same reasons.The objective of this master thesis is to evaluate the feasibility of using SDR technologies for Medical applications.In this project, the parameters that affect the measurement quality were studied.Furthermore, calibration strategies for random phase offset between the transmitter and the receiver were successfully developed and evaluated.Then the measurement repeatability and accuracy of the system were evaluated, the results show that the calibration system made the measurements repeatable, making the system practical for medical monitoring.On the other hand, in order to achieve higher accuracy, the calibration methods need to be further developed.Additionally, the possibility of using the SDR for other medical application was explored, the results show that it can be effectively used in non-contact vital sign monitoring.