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Ultra-wide band (UWB) pulse Doppler radars provide range-time-frequency information which enables the target localization and vital sign monitoring of a subject. One challenge for UWB radar systems is accurately detecting the heartbeat of a subject, i.e. recording the small displacements of thorax caused by heartbeat due to its poor S/N ratio. Given that the phase-based algorithms are more robust...
UWB Doppler radar is capable of monitoring vital signs of human beings in a non-contact way by detecting the changes in the time of flight of narrow pulses emitted by the radar and reflected from the human chest. However, the received signal may be corrupted when there is a random motion if handheld UWB radar is used, especially when the amplitude of motion is higher than that of the thoracic motion...
In this paper, we present a low cost ultra wideband (UWB) biometric radar sensor for respiration detection and monitoring applications. By using pulse Doppler radar technology, the developed sensor goes beyond detecting the breathing of a single person as conventional radars do; to simultaneously localizing and monitoring multiple human objects as well. The biometric sensor achieves a high range resolution...
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