Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/11282
Title: Extraction of respiratory activity from photoplethysmographic signals based on an independent component analysis technique : preliminary report
Authors: Zhou, Y
Zheng, Y 
Wang, C
Yuan, J
Keywords: Apnoea
ICA
Independent component analysis
Photoplethysmography
PPG
Pulse oximetry
Respiration
Issue Date: 2006
Publisher: Taylor & Francis
Source: Instrumentation science and technology, 2006, v. 34, no. 5, p. 537-545 How to cite?
Journal: Instrumentation science and technology 
Abstract: A new method is reported for monitoring respiratory activity using photoplethysmography (PPG) without the need of prior knowledge of the respiratory rate range. Two channels of transmission mode PPG signals were collected from the subject's index finger and analyzed using an independent component analysis (ICA) algorithm. The respiratory activity was separated from the heart-related pulsation in PPG after the ICA analysis. The results demonstrated that the ICA analysis could successfully extract normal and simulated apnoea respiratory activities. The algorithm was applied for both simulated signals and those collected from 10 young normal adults. The reported technique may be potentially used for the simultaneous monitoring of the pulse rate and respiratory activity based on the hardware of current pulse oximetry devices. The structure and implementation of this preliminary respiratory activity monitoring system were presented. Possible further improvements for the system performance were also discussed.
URI: http://hdl.handle.net/10397/11282
ISSN: 1073-9149
DOI: 10.1080/10739140600809678
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