title: Real-time drift suppressor for ECG.
abstract: By introducing poles close to the zeros of the transfer function (1 - Z-N), a drift filter is formed which involves only simple addition and shifting operations and is therefore capable of real-time application with moderate speed microprocessors. A normal ECG with moderate baseline fluctuations showed satisfactory drift suppression with minimal observable T-wave distortion.
authors.affiliation: Department of Electronics, Chinese University of Hong Kong, Shatin, N.T.
authors.forename: T T
authors.initials: TT
authors.lastname: Choy
authors.forename: P M
authors.initials: PM
authors.lastname: Leung
mesh_terms: D004562:Electrocardiography / Q000295:instrumentation / Q000379:methods*; D004867:Equipment Design; D008838:Microcomputers; D012815:Signal Processing, Computer-Assisted; D013997:Time Factors