Title :
Time-frequency analysis in Doppler radar for noncontact cardiopulmonary monitoring
Author :
Birsan, Nicusor ; Munteanu, Doru-Petru ; Iubu, Gheorghe ; Niculescu, Tudor
Author_Institution :
Dept. of Mil. Commun. & Electron. Syst., Mil. Tech. Acad., Bucharest, Romania
Abstract :
The paper presents a method for non-contact cardiopulmonary monitoring by using a Doppler radar in the 24 GHz band. Instead of trying to extract directly the distance from phase observation in the baseband signal, we looked for a pattern in time-frequency domain. Using the Gabor transform, component selection, and Gabor expansion we get good data accuracy in the extracted vital signs even if the patient didn´t stand still and moved with large amplitudes.
Keywords :
Doppler radar; cardiovascular system; patient monitoring; time-frequency analysis; Doppler radar; Gabor expansion; Gabor transform; component selection; noncontact cardiopulmonary monitoring; phase observation; time frequency analysis; Doppler radar; Heart beat; Monitoring; Radar antennas; Time frequency analysis; Transforms; cardiopulmonary; monitoring; radar; time-frequency;
Conference_Titel :
E-Health and Bioengineering Conference (EHB), 2011
Conference_Location :
Iasi
Print_ISBN :
978-1-4577-0292-1
