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A Review on Recent Advances in Doppler Radar Sensors for Noncontact Healthcare Monitoring

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4 Author(s)
Changzhi Li ; Department of Electrical and Computer Engineering, Texas Tech University, Lubbock, TX, USA ; Victor M. Lubecke ; Olga Boric-Lubecke ; Jenshan Lin

This paper reviews recent advances in biomedical and healthcare applications of Doppler radar that remotely detects heartbeat and respiration of a human subject. In the last decade, new front-end architectures, baseband signal processing methods, and system-level integrations have been proposed by many researchers in this field to improve the detection accuracy and robustness. The advantages of noncontact detection have drawn interests in various applications, such as energy smart home, baby monitor, cardiopulmonary activity assessment, and tumor tracking. While many of the reported systems were bench-top prototypes for concept verification, several portable systems and integrated radar chips have been demonstrated. This paper reviews different architectures, baseband signal processing, and system implementations. Validations of this technology in a clinical environment will also be discussed.

Published in:

IEEE Transactions on Microwave Theory and Techniques  (Volume:61 ,  Issue: 5 )