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Improved lower bounds on ranging accuracy of rectangular template-based UWB correlation radar for vital sign monitoring

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  • H.A. Shaban
  • M. Abou El-Nasr

Abstract

This paper proposes and investigates low-power rectangular ultra wideband (UWB) correlation-based radars for vital sign monitoring with a target ranging accuracy of 0.08 mm. The lower bounds on the time-of-arrival estimation error are studied. In particular, we study and compare the improved Ziv-Zakai lower bound of rectangular template-based estimators to the corresponding optimal estimators via semi-analytic simulations in the UWB IEEE 802.15.6a CM #3 channel and a simulated channel model based on actual on-body measurements. We show that the investigated radar achieves the target ranging accuracy at a signal-to-noise-ratio (SNR) = 40 dB. Also, we study the effect of template pulse misalignment on the proposed estimators. We provide theoretical as well as numerical results based on semi-analytic simulations in the IEEE 802.15.6a UWB channels. A link budget is designed for the achievement of the target SNR with a link margin = 3 dB.

Suggested Citation

  • H.A. Shaban & M. Abou El-Nasr, 2013. "Improved lower bounds on ranging accuracy of rectangular template-based UWB correlation radar for vital sign monitoring," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 27(3), pages 355-364, February.
    • Handle: RePEc:taf:tewaxx:v:27:y:2013:i:3:p:355-364
    DOI: 10.1080/09205071.2013.746631
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