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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/).
Validation of system. On the left image the drone is using the UWB system to perform an autonomous flight for inventory-taking. In the right image the UWB system is used for tracking a runner on a running track.