A novel quadrature interference subtraction technique in ECG noise reduction

Author

Köymen, H. ; Ider, Y.Z. ; Hizarci, G. ; Küçükdeveci, F. ; Tüzün, F. ; Yaylali, I.

Author_Institution

Dept. of Electr. Eng., Middle East Tech. Univ., Ankara, Turkey

fYear

1988

fDate

25-28 Sep 1988

Firstpage

409

Lastpage

412

Abstract

A line-interference reduction technique is described. The technique employs acquired interference data and derives the quasi-quadtree interference signal, which is subsequently used to find the interference-signal amplitude and phase in ECGs through a minimum-least-squares procedure. The technique removes the necessity of estimating the frequency of interference and only considers amplitude fitting. The algorithm is fast and is integrated into the QRS detection algorithm. The reduction is very good, and the interference is entirely eliminated in the digital data, which consists of 500 samples/s/channel at 12-bit resolution

Keywords

biomedical electronics; electrocardiography; signal processing; ECG noise reduction; QRS detection algorithm; amplitude fitting; digital data; line-interference reduction technique; minimum-least-squares procedure; quadrature interference subtraction technique; Electrocardiography; Frequency estimation; Interference; Microcomputers; Microprocessors; Monitoring; Noise reduction; Printers; Random access memory; Subtraction techniques;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology, 1988. Proceedings.

Conference_Location

Washington, DC

Print_ISBN

0-8186-1949-X

Type

conf

DOI

10.1109/CIC.1988.72646

Filename

72646