An Adaptive Filtering System for Separation of Cardiac and Respiratory Components of Bioimpedance Signal

Author

Krivoshei, Andrei ; Min, Mart ; Parve, Toomas ; Ronk, Ants

Author_Institution

Dept. of Electron., Tallinn Univ. of Technol.

fYear

2006

fDate

20-21 April 2006

Firstpage

10

Lastpage

15

Abstract

This paper presents an adaptive filtering system for separation of two bio-impedance signal components: cardiac and respiratory signals. The proposed filtering system is adaptive to the parameters of the input signal´s cardiac component (the reference signal), which is corrupted by the respiratory component and also by additive stochastic disturbances. The adaptation is achieved applying estimation and continuous tracking of the heart rate using a time-optimal adaptive phase-locked loop (APLL). Technical solutions of the filtering system are oriented on applications in portable and implantable medical devices

Keywords

adaptive filters; adaptive signal processing; bioelectric phenomena; biomedical measurement; cardiology; medical signal processing; phase locked loops; pneumodynamics; stochastic processes; adaptive PLL; adaptive control; adaptive filtering system; adaptive phase-locked loop; additive stochastic disturbances; bioimpedance signal; cardiac pacing; cardiac signal component separation; digital filters; digital signal processing; gain control; heart rate tracking; implantable medical devices; parameter estimation; respiratory signal component separation; Adaptive filters; Adaptive systems; Bioimpedance; Filtering; Heart rate; Implantable biomedical devices; Phase estimation; Phase locked loops; Stochastic systems; Tracking loops;

fLanguage

English

Publisher

ieee

Conference_Titel

Medical Measurement and Applications, 2006. MeMea 2006. IEEE International Workshop on

Conference_Location

Benevento

Print_ISBN

1-4244-0253-0

Type

conf

DOI

10.1109/MEMEA.2006.1644448

Filename

1644448