Key result
Digital FIR filtering removes ECG baseline wander with minimal distortion of P and T waves.
Why the study?
Existing methods for ECG baseline wander removal have limitations such as phase distortion, high computation, transients, and delay times.
Population
ECG signals requiring baseline wandering removal
Comparison
Digital FIR filtering system vs curve fitting and classical filtering methods
Design
Description of a digital FIR filtering system with decimation and interpolation
Authors
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May aid ECG interpretation by preserving low-frequency waves; leaves open prospective clinical validation.
A digital FIR filtering system with decimation and interpolation effectively removes ECG baseline wander with minimal phase and amplitude distortion compared to classical methods.
J. P. Marques de (1982) studied ECG baseline wandering. Digital FIR filtering with decimation and interpolation vs. Curve fitting and classical filtering was evaluated on Removal of ECG baseline wander and amplitude distortion. A digital FIR filtering system with decimation and interpolation effectively removes ECG baseline wander with very low amplitude distortion for low frequency components of P and T waves.
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