title: Adaptive Fourier decomposition based ECG denoising.
abstract: A novel ECG denoising method is proposed based on the adaptive Fourier decomposition (AFD). The AFD decomposes a signal according to its energy distribution, thereby making this algorithm suitable for separating pure ECG signal and noise with overlapping frequency ranges but different energy distributions. A stop criterion for the iterative decomposition process in the AFD is calculated on the basis of the estimated signal-to-noise ratio (SNR) of the noisy signal. The proposed AFD-based method is validated by the synthetic ECG signal using an ECG model and also real ECG signals from the MIT-BIH Arrhythmia Database both with additive Gaussian white noise. Simulation results of the proposed method show better performance on the denoising and the QRS detection in comparing with major ECG denoising schemes based on the wavelet transform, the Stockwell transform, the empirical mode decomposition, and the ensemble empirical mode decomposition.
authors: Department of Electrical and Computer Engineering, Faculty of Science and Technology, University of Macau, Taipa, Macau.
authors: Ze
authors: Z
authors: Wang
authors: Department of Electrical and Computer Engineering, Faculty of Science and Technology, University of Macau, Taipa, Macau. Electronic address: fwan@umac.mo.
authors: Feng
authors: F
authors: Wan
authors: Department of Electrical and Computer Engineering, Faculty of Science and Technology, University of Macau, Taipa, Macau.
authors: Chi Man
authors: CM
authors: Wong
authors: Department of Computer and Information Science, Faculty of Science and Technology, University of Macau, Taipa, Macau.
authors: Liming
authors: L
authors: Zhang
mesh_terms: D000704:Analysis of Variance; D003198:Computer Simulation; D004562:Electrocardiography / Q000379:methods*; D005583:Fourier Analysis; D006801:Humans; D016011:Normal Distribution; D015203:Reproducibility of Results; D012815:Signal Processing, Computer-Assisted; D059629:Signal-To-Noise Ratio
keywords: Adaptive Fourier decomposition; Electrocardiogram (ECG); Gaussian noise; Signal denoising