Application of wavelet analysis in pick-up of breath signal from oscillations in chest wall / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 65-69, 2012.
Article
in Chinese
| WPRIM
| ID: wpr-274902
ABSTRACT
In order to pick up breath signal from correlated noise background of the pulse of heart and artery etc, an algorithm based on wavelet de-noising has been introduced. With wavelet db4, the raw signal was decomposed into the scale space of six layers; threshold treatment was done with the self-adaptive threshold created by Stein's Unbiased Risk Estimate; then the wavelet coefficients were reconstructed. The result showed that the noise was significantly depressed.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Respiration
/
Algorithms
/
Signal Processing, Computer-Assisted
/
Respiratory Sounds
/
Artifacts
/
Chest Wall Oscillation
/
Wavelet Analysis
/
Methods
/
Monitoring, Physiologic
Limits:
Humans
Language:
Chinese
Journal:
Journal of Biomedical Engineering
Year:
2012
Type:
Article
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