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. 2016 Aug 1;16(8):1208. doi: 10.3390/s16081208

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© 2016 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).

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Comparison between the real sinusoidal speed (plain red) and the speed reconstructed from the signal with different methods: PCI (green dot), LI (dashed purple), SWAI (black triangle), SWARII (plain blue) and Cubic splines (cyan square).