Adaptive impulse correlated filter (AICF) improvement for photoplethysmographic signals.
Measured PPG signals are often contaminated with different noises and artifacts. For clinical diagnostics, it is important to have accurate signals. Removing noises and motion artifacts from PPG signal has been actual also in previous studies. In this study, we are proposing new adaptive impulse correlated filter (AICF) improvement for plethysmographic signals. It uses ECG signal to create reference with unit impulses. All signals, which do not correlate with reference signal, will be filtered out. To show, how the filter acts with artifacts with low SNR, the experiment was conducted.
Pilt
Kristjan
K
Department of Biomedical Engineering, Tallinn University of Technology, Tallinn, 19086 Estonia. kristjan.pilt@gmail.com
Meigas
Kalju
K
Lass
Jaanus
J
Rosmann
Mart
M
Kaik
Jüri
J
D000465:Algorithms; D003936:Diagnosis, Computer-Assisted / Q000379:methods*; D006801:Humans; D017156:Photoplethysmography / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted