作者: L. E. Avendaño , L. D. Avendaño , C. G. Castellanos , J. M. Ferrero
DOI: 10.1007/978-3-540-74471-9_26
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摘要: In this paper, we compare three different methods for suppressing sinusoidal perturbation, whose amplitude, frequency and phase are supposed to be unknown may present changes along time, particularly, removing power line interference from ECG signal records. The first method is a non-linear adaptive algorithm extraction of non stationary sinusoids (NAENS), which considered as baseline comparison. second third algorithms based on Kalman filtering, using two state space models discrete-time oscillators. As result, it was obtained that both filter have better performance than NAENS method, considering the presence amplitude changes.