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. 2013 Jul 4;13(7):8534–8550. doi: 10.3390/s130708534

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© 2013 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 6. — Signal of seismic targets. (a) Pedestrian SS; (b) Pedestrian WPNE; (c) Wheeled vehicle SS; (d) Wheeled vehicle WPNE; (e) Tracked vehicle SS; (f) Tracked vehicle WPNE; (g) Helicopter SS; (h) Helicopter WPNE.

Figure 6. — Signal of seismic targets. (a) Pedestrian SS; (b) Pedestrian WPNE; (c) Wheeled vehicle SS; (d) Wheeled vehicle WPNE; (e) Tracked vehicle SS; (f) Tracked vehicle WPNE; (g) Helicopter SS; (h) Helicopter WPNE.