Investigation of the LO phase-noise effect and RF system simulation for a 60-GHz wireless non-contact human vital-signal detection system

  • Authors:

  • P.-H. Lien;F.-L. Lin;H.-R. Chuang

  • Affiliations:

  • Institute of Computer and Communication Engineering, Department of Electrical Engineering, National Cheng Kung University, Tainan, Taiwan, R.O.C.;Department of Electronics Engineering, Southern Taiwan University of Technology, Tainan, Taiwan, R.O.C.;Institute of Computer and Communication Engineering, Department of Electrical Engineering, National Cheng Kung University, Tainan, Taiwan, R.O.C.

  • Venue:
  • ISWPC'09 Proceedings of the 4th international conference on Wireless pervasive computing
  • Year:
  • 2009

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Abstract

A detailed RF modeling and analysis for the effect of the phase noise of the local oscillator (LO) on a 60-GHz wireless non-contact human vital-signal detection system has been developed. To model the effect of the LO phase noise on the remote detecting estimation of the desired breathing and heartbeat signals around 1 Hz, the Lorentzian spectrum is applied for the RF system simulation of detection process. The simulation uses the root-MUSIC algorithm to calculate the frequency error ratios of the estimated heartbeat and breathing signals by the detection system. From the simulation results, it is found that root-MUSIC method is robust to analyze the effects of different phase noises on the non-contact vital-signal detection. The simulation result will be very useful for the RF design specifications of the wireless non-contact human vitalsignal detection system.