Jensen, Brian Sveistrup1; Johansen, Tom Keinicke1; Yan, Lei1
1 Department of Electrical Engineering, Technical University of Denmark2 Department of Electromagnetic Systems, Technical University of Denmark3 Electromagnetic Systems, Department of Electrical Engineering, Technical University of Denmark
In this paper an experimental X-band radar system, called DTU-VISDAM, developed for the detection and monitoring of human vital signs is described. The DTU-VISDAM radar exploits a low intermediate frequency (IF) heterodyne RF front-end architecture and single-sideband (SSB) transmission for easier and more reliable extraction of the vital signs. The hardware implementation of the proposed low-IF RF front-end architecture and associated IF circuitry is discussed. Furthermore, the signal processing and calibration steps necessary to extract the vital signs information measured on a human subject are described.
Proceedings of 2013 Ieee International Wireless Symposium (iws), 2013
biomedical measurement; radar detection; Computing and Processing; Human vital signs; Low-IF architecture; Radar; Single-sideband transmission