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. 2018 Jun 25;56(12):2313–2323. doi: 10.1007/s11517-018-1862-8

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© The Author(s) 2018

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 7 — Enhancement result of the different algorithms for the simulated signals described in Fig. 4. In the first row, the simulated clean fetal ECG signal is displayed for comparison. Only the proposed method (aTSAF) provides a high-quality result in this challenging case of low-SNR input signals (− 18 dB on average)