Non-contact Measurement of Biological Signals Using Microwave Radar
The objective of this study was to develop a prototype system to monitor biological signals using microwave radar, without making contact with the body and without removing clothing. The prototype system has a microwave Doppler radar antenna with a 24-GHz frequency and approximately 7-mW output power. Experiments were conducted with a group of subjects. We found that the prototype system precisely captured the heart rate and the heart-rate variability (HRV). Our prototype system allows for the monitoring of biological signals, without placing any burden on the monitored individuals
KeywordsNon-contact Microwave heartbeat
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