Implementation of a multi-channel biomagnetic measurement system using DSP technology

Author

McKay, J. ; Vrba, J. ; Betts, K. ; Burbank, M. ; Lee, S. ; Mori, K. ; Nonis, D. ; Spear, P. ; Uriel, Y.

Author_Institution

CTF Syst. Inc., Port Coquitlam, BC, Canada

fYear

1993

fDate

14-17 Sep 1993

Firstpage

1090

Abstract

Reports on the functions, architecture, and performance of the digital signal processing components of a biomagnetometer system including over 100 total channels. The functions of the system include sensor linearization via feedback, sample rate conversion filtering, noise cancellation, variable cutoff low and high pass filtering, and notch or comb filtering for power line harmonics. The flexible, high performance system architecture is based on commercial DSP chips and a mixture of serial and parallel data communications paths. The overall performance of the first production system is summarized

Keywords

biomagnetism; biomedical equipment; biomedical measurement; medical signal processing; DSP technology; biomagnetometer system; comb filtering; feedback; flexible high performance system architecture; high pass filtering; low pass filtering; multichannel biomagnetic measurement system; noise cancellation; notch filtering; parallel data communications paths; power line harmonics; sample rate conversion filtering; sensor linearization; serial data communications paths; variable cutoff; Biomagnetics; Biosensors; Digital signal processing; Digital signal processing chips; Feedback; Filtering; Noise cancellation; Power harmonic filters; Power system harmonics; Sensor systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 1993. Canadian Conference on

Conference_Location

Vancouver, BC

Print_ISBN

0-7803-2416-1

Type

conf

DOI

10.1109/CCECE.1993.332268

Filename

332268