Title :
Suppression of the Respiration Interference in the Arterial Photoplethysmography
Author :
Liu Yuliang ; Lian Jianxin
Author_Institution :
Coll. of Electr. Inf. & Autom., Tianjin Univ. of Sci. & Technol., Tianjin
Abstract :
The measurement accuracy of the dynamic spectrum is correlated with the measurement accuracy of amplitude of the arterial photoplethysmography (PPG). In order to get higher accuracy of pulse wave amplitude, suppress the respiration interference of the pulse wave, the original pulse wave signal is processed by the wavelet analysis combined with the characteristic parameter reconstruction based on the coherent average. Firstly, characteristic parameter of the original pulse wave is calculated by method of the coherent average and the pure pulse wave is reconstructed. Then applies the wavelet analysis on the rest of the original signal removed the pulse wave component, extracts the respiration signal. It has been proved by experiment that by the method presented, high accuracy pulse wave amplitude has been acquired, the respiration interference has been suppressed and the measurement accuracy of the dynamic spectrum has been improved.
Keywords :
bio-optics; blood; blood vessels; haemodynamics; measurement uncertainty; medical signal processing; plethysmography; pneumodynamics; signal reconstruction; wavelet transforms; arterial photoplethysmography; characteristic parameter reconstruction; coherent average; dynamic spectrum correlation; measurement accuracy; pulse wave amplitude; respiration interference suppression; wavelet analysis; Area measurement; Blood; Data mining; Electric variables measurement; Frequency; Interference suppression; Signal to noise ratio; Spectroscopy; Wavelength measurement; Wavelet analysis;
Conference_Titel :
Bioinformatics and Biomedical Engineering, 2008. ICBBE 2008. The 2nd International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1747-6
Electronic_ISBN :
978-1-4244-1748-3
DOI :
10.1109/ICBBE.2008.787
