Title :
Investigation of the LO Phase-Noise Effect and RF System Simulation for A 60-GHz Wireless Non-Contact Human Vital-Signal Detection System
Author :
Lien, P.-H. ; Lin, F.-L. ; Chuang, H.-R.
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan
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 vital-signal detection system.
Keywords :
error statistics; medical signal detection; oscillators; signal classification; LO phase-noise effect; Lorentzian spectrum; RF system simulation; breathing signals; frequency 60 GHz; frequency error ratios; heartbeat signals; local oscillator; remote detecting estimation; root-MUSIC algorithm; wireless noncontact human vital-signal detection system; Frequency estimation; Heart beat; Humans; Local oscillators; Phase detection; Phase estimation; Phase noise; RF signals; Radio frequency; Signal processing;
Conference_Titel :
Wireless Pervasive Computing, 2009. ISWPC 2009. 4th International Symposium on
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4244-2965-3
Electronic_ISBN :
978-1-4244-2966-0
DOI :
10.1109/ISWPC.2009.4800588
