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. 2009 Apr 14;9(4):2574–2585. doi: 10.3390/s90402574

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© 2009 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 license (http://creativecommons.org/licenses/by/3.0/).

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Figure 2. — Phasor traces of the simulated signal due to two scatterers at distance 1.02 m and 0.99 m, with a sinusoidal motion with 6mm and 4 mm peak-to-peak amplitude respectively. (a) oscillation at 0.25 Hz movement have a phase shift of π/3. (b) oscillation frequencies are 0.25 Hz e 0.30 Hz respectively.