Doppler Radar Vital Signs Detection Method Based on Higher Order Cyclostationary
AbstractDue to the non-contact nature, using Doppler radar sensors to detect vital signs such as heart and respiration rates of a human subject is getting more and more attention. However, the related detection-method research meets lots of challenges due to electromagnetic interferences, clutter and random motion interferences. In this paper, a novel third-order cyclic cummulant (TOCC) detection method, which is insensitive to Gaussian interference and non-cyclic signals, is proposed to investigate the heart and respiration rate based on continuous wave Doppler radars. The k-th order cyclostationary properties of the radar signal with hidden periodicities and random motions are analyzed. The third-order cyclostationary detection theory of the heart and respiration rate is studied. Experimental results show that the third-order cyclostationary approach has better estimation accuracy for detecting the vital signs from the received radar signal under low SNR, strong clutter noise and random motion interferences. View Full-Text
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Yu, Z.; Zhao, D.; Zhang, Z. Doppler Radar Vital Signs Detection Method Based on Higher Order Cyclostationary. Sensors 2018, 18, 47.
Yu Z, Zhao D, Zhang Z. Doppler Radar Vital Signs Detection Method Based on Higher Order Cyclostationary. Sensors. 2018; 18(1):47.Chicago/Turabian Style
Yu, Zhibin; Zhao, Duo; Zhang, Zhiqiang. 2018. "Doppler Radar Vital Signs Detection Method Based on Higher Order Cyclostationary." Sensors 18, no. 1: 47.
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