Electrogastrogram and electrocardiogram interference: Application of fractional order calculus and Savitzky-Golay filter for biosignals segregation
Nenad B. Popovic, Nadica Miljković, Tomislav B. Šekara · 2020
We present a combination of fractional order calculus and Savitzky-Golay filter for extraction of both electrogastrogram and pulse rate signal from a mixed signal recorded with high sampling frequency (1 kHz). In order to evaluate the proposed method, we generated semi-synthetic biosignal mixture. In order to assess proposed methods, signal-to-noise ratio was calculated for the resulting extracted signals. Obtained results suggest that there are benefits from the combination of Savitzky-Golay filter and fractional order calculus, compared to the application of separate individual application of those methods. Further examination will be performed on in vivo recorded signals.