Hiệp. RESEARCH AND FABRICATION OF DEVICE FOR NON-CONTACT MEASUREMENT OF HEART AND RESPIRATION RATES BASED ON RADAR DOPPLER 24 GHZ. JMST [Internet]. 2021 Feb. 5 [cited 2024 Apr. 30];(71):40-8. Available from: https://en.jmst.info/index.php/jmst/article/view/102