Key result
Radar-based remote physiological sensing provides a promising non-contact method for monitoring vital signs such as respiratory rate and heart rate, despite challenges with multi-subject environments and random body movements.
Why the study?
Contactless, unobtrusive respiration monitoring has drawn clinical interest, but a perspective on recent advances, challenges, and opportunities of Doppler radar physiological sensing was needed.
Microwave Doppler radar offers a promising, highly accurate, non-contact alternative to traditional sensors for continuous monitoring of vital signs like heart rate and respiration.
Supports non-contact monitoring research; leaves open clinical validation before practice adoption.
Modern microwave Doppler radar-based physiological sensing is playing an important role in healthcare applications and during the last decade, there has been a significant advancement in this non-contact respiration sensing technology. The advantages of contactless, unobtrusive respiration monitoring have drawn interest in various medical applications such as sleep apnea, sudden infant death syndromes (SIDS), remote respiratory monitoring of burn victims, and COVID patients. This paper provides a perspective on recent advances in biomedical and healthcare applications of Doppler radar that can detect the tiny movement of the chest surfaces to extract heartbeat and respiration and its associated different vital signs parameters (tidal volume, heart rate variability (HRV), and so on) of the human subject. Additionally, it also highlights the challenges, and opportunities of this remote physiological sensing technology and several future research directions will be laid out to deploy this sensor technology in our day-to-day life.
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Shekh Md Mahmudul Islam (2022) conducted a review in Vital signs monitoring. Radar-based remote physiological sensing vs. Contact sensors was evaluated. Radar-based remote physiological sensing provides a promising non-contact method for monitoring vital signs such as respiratory rate and heart rate, despite challenges with multi-subject environments and random body movements.