Method of adaptive filtering of pulse-wave low-frequency distortions

Aleksandr Aleksandrovich Fedotov; Sergey Anatolievich Akulov

doi:10.3103/S0735272715010069

Authors

Aleksandr Aleksandrovich Fedotov Samara State Aerospace University, Russian Federation https://orcid.org/0000-0002-6022-6314
Sergey Anatolievich Akulov Samara State Aerospace University, Russian Federation

DOI:

https://doi.org/10.3103/S0735272715010069

Keywords:

pulse-wave, drift of isoline, filtering error, adaptive filtering

Abstract

Different methods of correcting the low-frequency distortions of pulse-wave signal have been considered. A correction method based on forming a reference signal of adaptive filter and using low-frequency filtering of initial biosignal is proposed. The efficiency of different methods of pulse-wave filtering is investigated under the conditions of exposure to interferences of different intensity. It has been found out that the proposed method of filtering low-frequency interferences makes it possible to obtain the lowest distortions in signal processing as compared to the model signals free from manifestation of distorting effects.

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