Title :
Chest movement estimation from radar modulation caused by heartbeats
Author :
Aardal, Øyvind ; Hamran, Svein-Erik ; Berger, Tor ; Paichard, Yoann ; Lande, Tor Sverre
Author_Institution :
Forsvarets forskningsinstitutt (FFI), Kjeller, Norway
Abstract :
Heartbeats can be measured at a distance using radar to record the chest movements. The physiological motion appear as modulations in both phase and amplitude in the radar recording. In this paper, a single reflector model of the heartbeat is used to estimate the chest motion and find the movement in millimeters. Experimental results from 10-18GHz measurements are presented, and the validity of the estimation discussed.
Keywords :
amplitude modulation; cardiology; motion estimation; phase modulation; radar; amplitude modulation; chest movement estimation; frequency 10 GHz to 18 GHz; heartbeats; phase modulation; physiological motion; radar modulation; single reflector model; Estimation; Frequency measurement; Frequency modulation; Heart beat; Phase modulation; Radar;
Conference_Titel :
Biomedical Circuits and Systems Conference (BioCAS), 2011 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4577-1469-6
DOI :
10.1109/BioCAS.2011.6107825
