DocumentCode :
1206439
Title :
A Precision Baseline Offset and Drift Corrector for Low-Frequency Applications
Author :
Bertolaccini, Mario ; Dotti, Domenico ; Padovini, Giorgio
Issue :
3
fYear :
1985
Firstpage :
405
Lastpage :
412
Abstract :
An analog technique for correcting baseline offset and drift in low-frequency systems is analyzed. The described method applies to periodic and nearly periodic signals, characterized by a time interval in which they may be considered at rest (electrocardiogram (ECG) signals, for instance), and is limited to linear drifts. Two different circuits have been developed and are discussed here. Signal conditioning performed on suitable input waveforms is presented. Noise effects have been theoretically considered and experimentally evaluated.
Keywords :
Biomedical measurements; Circuit noise; Electrocardiography; Fluctuations; Frequency; Low-frequency noise; Nuclear electronics; Pulse measurements; Signal restoration; Time measurement;
fLanguage :
English
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9456
Type :
jour
DOI :
10.1109/TIM.1985.4315359
Filename :
4315359
Link To Document :
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