Title :
Vital signs detection radar using low intermediate-frequency architecture and single-sideband transmission
Author :
Jensen, Brian Sveistrup ; Jonasson, S.T. ; Johansen, Tom K. ; Jensen, T.
Author_Institution :
Dept. of Electr. Eng., Tech. Univ. of Denmark, Lyngby, Denmark
fDate :
Oct. 31 2012-Nov. 2 2012
Abstract :
This paper presents a continuous wave vital signs detection radar that utilizes a heterodyne transceiver architecture with a 10 MHz intermediate frequency to remove both unwanted DC offsets in the electronic components and the so-called null-detection-points. For successful removal of the latter, it is shown that single-sideband transmission (or demodulation) must be used. Measurements verify this behaviour.
Keywords :
CW radar; biomedical communication; biomedical equipment; radar detection; radio transceivers; continuous wave vital signs detection radar; demodulation; electronic components; frequency 10 MHz; heterodyne transceiver architecture; low intermediate-frequency architecture; null-detection-points; single-sideband transmission; unwanted DC offsets; Amplitude modulation; Demodulation; Heart beat; Oscillators; Radar; Radio frequency; Sensors;
Conference_Titel :
Radar Conference (EuRAD), 2012 9th European
Conference_Location :
Amsterdam
Print_ISBN :
978-1-4673-2471-7
