DC rejection and deblocking in multichannel bioelectric recordings

Author

Grimbergen, C.A. ; MettingVanRijn, A.C. ; Kuiper, A.P. ; Honsbeek, R.H. ; Speijer, K. ; Peper, A.

Author_Institution

Dept. of Med. Phys., Amsterdam Univ., Netherlands

Volume

2

fYear

1995

fDate

20-23 Sep 1995

Firstpage

1665

Abstract

Multichannel instrumentation for the recording of bioelectric events should have provisions to reject the relatively large DC voltages which are produced by the electrodes involved. Active DC rejection is a suitable high pass filtering technique preserving the common mode rejection ratio of the preamplifiers. High pass filtering may lead to very slow responses of the instrumentation after overload, which can be handled by deblocking. A method to use the DC information of the rejected signal in a multichannel system is presented

Keywords

adaptive signal processing; bioelectric potentials; biomedical electronics; high-pass filters; medical signal processing; DC rejection; active DC rejection; bioelectric events recording; common mode rejection ratio; deblocking; high pass filtering; high pass filtering technique; multichannel bioelectric recordings; multichannel instrumentation; multichannel system; overload; preamplifiers; Bioelectric phenomena; Biomedical signal processing; Circuits; Electrodes; Filtering; Filters; Frequency; Hardware; Signal processing; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference

Conference_Location

Montreal, Que.

Print_ISBN

0-7803-2475-7

Type

conf

DOI

10.1109/IEMBS.1995.579881

Filename

579881