Phase-Based Methods for Heart Rate Detection Using UWB Impulse Doppler Radar

  title={Phase-Based Methods for Heart Rate Detection Using UWB Impulse Doppler Radar},
  author={Lingyun Ren and Haofei Wang and Krishna Naishadham and Ozlem Kilic and Aly E. Fathy},
  journal={IEEE Transactions on Microwave Theory and Techniques},
Ultra-wideband (UWB) pulse Doppler radars can be used for noncontact vital signs monitoring of more than one subject. However, their detected signals typically have low signal-to-noise ratio (SNR) causing significant heart rate (HR) detection errors, as the spurious harmonics of respiration signals and mixed products of respiration and heartbeat signals (that can be relatively higher than heartbeat signals) corrupt conventional fast Fourier transform spectrograms. In this paper, we extend the… 

Ultra-Wideband Impulse Radar Through-Wall Detection of Vital Signs

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Heartbeat extraction based on a high order derivative for ultra-wideband impulse radar application

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  • Engineering, Computer Science
    Journal of Physics D: Applied Physics
  • 2020
A heartbeat extraction algorithm based on a high order derivative (HOD) that will improve the signal-to-noise ratio (SNR) of the heartbeat signal and help for real-time monitoring of heartbeat signals.

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Doppler Radar Vital Signs Detection Method Based on Higher Order Cyclostationary

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.

Direct RF Signal Processing For Heart-Rate Monitoring Using UWB Impulse Radar

  • Yu RongD. Bliss
  • Computer Science, Business
    2018 52nd Asilomar Conference on Signals, Systems, and Computers
  • 2018
It is shown that mathematically the vital signs can be extracted directly from the raw RF signal and thus the down conversion to the complex baseband is optional.

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The derivation indicates that MIMO radar imaging with the stepped-frequency continuous-wave (SFCW) improves the signal-to-noise ratio (SNR) critically by the factor of radar channel number times frequency number compared with continuous- wave (CW) Doppler radars.

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  • J. LaiYing Xu C. Poh
  • Computer Science
    IEEE Transactions on Instrumentation and Measurement
  • 2011
Backscattered UWB impulse radio signals from a human subject are detected in the time domain to calculate the chest displacements in this paper and the correlation of the chest movements' amplitude and breathing rate between the simultaneously measured results and by the respiratory chest band is very good.

Noncontact Multiple Heartbeats Detection and Subject Localization Using UWB Impulse Doppler Radar

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