Noise analysis for noncontact vital sign detectors

Xiaogang Yu; Changzhi Li; Jenshan Lin

doi:10.1109/WAMICON.2010.5461889

Noise analysis for noncontact vital sign detectors

Xiaogang Yu, Changzhi Li, Jenshan Lin

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

8 Scopus citations

Abstract

A method for analyzing the overall noise performance of vital sign detectors is introduced. For demonstration purpose, the noise analysis on a quadrature direct-conversion vital sign detector is performed. The detector is divided into three sub-systems including RF Front-end amplifiers, mixer with LO, and baseband amplifiers. The noise characteristics of the sub-systems are studied individually and combined to form the overall noise evaluation of the detector. The study on mixer sub-system results in a key design consideration of mixer. The signal-to-noise ratio at the sampler input is defined as the output SNR and is used to measure the overall noise performance of the vital sign detectors. The effect of output SNR on vital sign detection is presented. Tradeoff between output SNR and detection distance is verified by the experimental results.

Original language	English
Title of host publication	2010 IEEE 11th Annual Wireless and Microwave Technology Conference, WAMICON 2010
DOIs	https://doi.org/10.1109/WAMICON.2010.5461889
State	Published - 2010
Event	2010 IEEE 11th Annual Wireless and Microwave Technology Conference, WAMICON 2010 - Melbourne, FL, United States Duration: Apr 12 2010 → Apr 13 2010

Publication series

Name	2010 IEEE 11th Annual Wireless and Microwave Technology Conference, WAMICON 2010

Conference

Conference	2010 IEEE 11th Annual Wireless and Microwave Technology Conference, WAMICON 2010
Country	United States
City	Melbourne, FL
Period	04/12/10 → 04/13/10

Keywords

Doppler radar
Flicker noise
Mixer
Noise analysis
Non-contact
SNR
Vital sign detection

Access to Document

10.1109/WAMICON.2010.5461889

Link to publication in Scopus

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Cite this

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title = "Noise analysis for noncontact vital sign detectors",

abstract = "A method for analyzing the overall noise performance of vital sign detectors is introduced. For demonstration purpose, the noise analysis on a quadrature direct-conversion vital sign detector is performed. The detector is divided into three sub-systems including RF Front-end amplifiers, mixer with LO, and baseband amplifiers. The noise characteristics of the sub-systems are studied individually and combined to form the overall noise evaluation of the detector. The study on mixer sub-system results in a key design consideration of mixer. The signal-to-noise ratio at the sampler input is defined as the output SNR and is used to measure the overall noise performance of the vital sign detectors. The effect of output SNR on vital sign detection is presented. Tradeoff between output SNR and detection distance is verified by the experimental results.",

keywords = "Doppler radar, Flicker noise, Mixer, Noise analysis, Non-contact, SNR, Vital sign detection",

author = "Xiaogang Yu and Changzhi Li and Jenshan Lin",

year = "2010",

doi = "10.1109/WAMICON.2010.5461889",

language = "English",

isbn = "9781424466887",

series = "2010 IEEE 11th Annual Wireless and Microwave Technology Conference, WAMICON 2010",

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Yu, X, Li, C & Lin, J 2010, Noise analysis for noncontact vital sign detectors. in 2010 IEEE 11th Annual Wireless and Microwave Technology Conference, WAMICON 2010., 5461889, 2010 IEEE 11th Annual Wireless and Microwave Technology Conference, WAMICON 2010, 2010 IEEE 11th Annual Wireless and Microwave Technology Conference, WAMICON 2010, Melbourne, FL, United States, 04/12/10. https://doi.org/10.1109/WAMICON.2010.5461889

Noise analysis for noncontact vital sign detectors. / Yu, Xiaogang; Li, Changzhi; Lin, Jenshan.

2010 IEEE 11th Annual Wireless and Microwave Technology Conference, WAMICON 2010. 2010. 5461889 (2010 IEEE 11th Annual Wireless and Microwave Technology Conference, WAMICON 2010).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Li, Changzhi

AU - Lin, Jenshan

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N2 - A method for analyzing the overall noise performance of vital sign detectors is introduced. For demonstration purpose, the noise analysis on a quadrature direct-conversion vital sign detector is performed. The detector is divided into three sub-systems including RF Front-end amplifiers, mixer with LO, and baseband amplifiers. The noise characteristics of the sub-systems are studied individually and combined to form the overall noise evaluation of the detector. The study on mixer sub-system results in a key design consideration of mixer. The signal-to-noise ratio at the sampler input is defined as the output SNR and is used to measure the overall noise performance of the vital sign detectors. The effect of output SNR on vital sign detection is presented. Tradeoff between output SNR and detection distance is verified by the experimental results.

AB - A method for analyzing the overall noise performance of vital sign detectors is introduced. For demonstration purpose, the noise analysis on a quadrature direct-conversion vital sign detector is performed. The detector is divided into three sub-systems including RF Front-end amplifiers, mixer with LO, and baseband amplifiers. The noise characteristics of the sub-systems are studied individually and combined to form the overall noise evaluation of the detector. The study on mixer sub-system results in a key design consideration of mixer. The signal-to-noise ratio at the sampler input is defined as the output SNR and is used to measure the overall noise performance of the vital sign detectors. The effect of output SNR on vital sign detection is presented. Tradeoff between output SNR and detection distance is verified by the experimental results.

KW - Doppler radar

KW - Flicker noise

KW - Mixer

KW - Noise analysis

KW - Non-contact

KW - SNR

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