Implementation of hardware-software filtering in a measuring converter of the arterial pulse signal

Abstract

The paper deals with a technique of hardware-software filtering implemented in a measuring converter of the arterial pulse signal. As a result of research the optimal pass band of a digital filter and optimal cut-off frequency of a hardware high-pass filter were determined. The metrological characteristics of a photometric measuring converter of the arterial pulse signal were investigated. The instrumental errors of measurement of amplitude-time characteristics of the recorded arterial pulse signal were determined.

About the authors

A. A. Fedotov

Samara State Aerospace University

Author for correspondence.
Email: fedoaleks@yandex.ru

Candidate of Science (Engineering), Associate Professor

Radioengineering and Biomedical Engineering Department

Russian Federation

S. A. Akulov

Samara State Aerospace University

Email: sakulov1981@mail.ru

Candidate of Science (Engineering), Associate Professor

Radioengineering and Biomedical Engineering Department

Russian Federation

References

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  2. Fedotov A.A., Akulov S.A. Matematicheskoe modelirovanie i analiz pogreshnostey izmeritelnyh preobrazovateley biomeditsinskih signalov [Mathematical modeling and accuracy analysis of biotransducers]. Moscow: FIZMATLIT Publ., 2013. 282 p.
  3. Allen J., Murray A. Effects of filtering on multi-site photoplethysmography pulse waveform characteristics // Computers in Cardiology Proceedings. 2004. P. 485-488. doi: 10.1109/cic.2004.1442980
  4. Kalakutsky L.I., Fedotov A.A. Diagnostics of endothelial dysfunction by the method of contour analysis of pulse wave // Izvestiya Yuzhnogo federal'nogo universiteta. Tekhnicheskie nauki. 2009. V. 98, no.9. P 93-98. (In Russ.)
  5. Rangayyan R.M. Analiz biomeditsinskih signalov. Prakticheskiy podhod [Biomedical signal analysis. A case-study approach]. Moscow: FIZMATLIT Publ., 2007. 440 p.
  6. Fedotov A.A. Amplitude–time method for detecting characteristic pulse wave points // Springer: Biomedical Engineering. 2013. V. 46, Issue 6. P. 241-245. doi: 10.1007/s10527-013-9315-z
  7. Novitskiy P.V., Zograf I.A. Otsenka pogreshnostey rezul'tatov izmereniy [Estimation of accuracy of measurement results]. L.: Energoatomizdat Publ., 1991. 304 p.

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