DOI 10.17586/0021-3454-2020-63-7-626-633
UDC 007, 621.391.82
EVALUATION OF LOW-FREQUENCY NOISE RELATIONSHIP IN MULTICHANNEL REGISTRATION OF ECG SIGNAL
ITMO University, Saint Petersburg, 197101, Russian Federation; Associate professor
K. A. Zimenko
ITMO University, Saint Petersburg, 197101, Russian Federation; Senior Scientific Researcher
Y. Altay
ITMO University, Saint Petersburg, 197101, Russian Federation; PhD Student, Engineer
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Abstract. A method for processing multichannel recording of ECG to isolate low-frequency interference in various leads is presented. The method is based on polynomial Newton filtering of high frequencies. The efficiency of the proposed method is analyzed, and a comparative analysis of its effectiveness relative to the known approaches is carried out based on quantitative indicators. Using the developed method, low-frequency interference was isolated from a noisy multi-channel recording. Based on the selected samples, a high correlation between low-frequency interference in various and adjacent leads of the electrocardiogram is established.
Keywords: ECG signal, low-frequency noise, correlation coefficient, polynomial filtering, Newton polynomial, Butterworth polynomial, multi-channel recording
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