Title :
A digital filter for mobile ECG measurement systems
Author :
Völker, M. ; Neubauer, H. ; Johansson, J. ; Dorn, R. ; Hauer, J.
Author_Institution :
Fraunhofer Inst. for Integrated Circuits IIS, Erlangen
Abstract :
This paper presents the design and implementation of an integrated digital filter for ambulatory ECG monitoring. The requirements given by the standard IEC60601-2-47 which covers ambulatory ECG equipment are met. The filter is designed to follow a three bit delta sigma modulator and includes 512 times decimation. Measurements show that the average stop band attenuation is above 70 dB. The use of half band sub filters offers the possibility to move the decimation in front of them and hence reduce the power consumption. The power consumption of the filter is 2.7 muW at 51.2 kHz system clock
Keywords :
IEC standards; biomedical telemetry; delta-sigma modulation; digital filters; electrocardiography; medical signal processing; mobile communication; patient monitoring; 2.7 muW; IEC60601-2-47 standards; ambulatory monitoring; delta sigma modulator; electrocardiographic equipment; half-band sub filters; integrated digital filter; mobile ECG measurement systems; stop band attenuation; Analog-digital conversion; Attenuation; Biomedical monitoring; Delta-sigma modulation; Digital filters; Electrocardiography; Energy consumption; Finite impulse response filter; Patient monitoring; Signal processing;
Conference_Titel :
Medical Measurement and Applications, 2006. MeMea 2006. IEEE International Workshop on
Conference_Location :
Benevento
Print_ISBN :
1-4244-0253-0
DOI :
10.1109/MEMEA.2006.1644457
