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- Title
Multiple moving person tracking by UWB sensors: the effect of mutual shielding persons and methods reducing its impacts.
- Authors
Kocur, Dušan; Fortes, Jana; Švecová, Mária
- Abstract
Ultra-wideband (UWB) radars are sensors allowing to track people in critical environments and situations. The results reached by single UWB sensors for such applications have shown that they are able to detect and track a person very well in a single person scenario. However, in multiple moving person scenarios, the ability of a single UWB sensor to detect several persons is usually significantly reduced. This is caused by a mutual shielding among people. In this paper, we will deal with the mutual shielding effect and its impacts, as well as with the methods of improving multiple moving person tracking by UWB radars. Firstly, we will provide a comprehensive description of the mutual shielding effect. Then, based on its analyses, we will state three complementary approaches created by the authors of this paper to reduce its impacts. They include an enhancement of the low-level echo of the targets, radar antenna array positioning at a convenient height, UWB sensor network application and, finally, their mutual combinations. The properties of those approaches will be demonstrated by two experimental measurements aimed at through wall tracking of two and three people, respectively. The results obtained in the experiments will illustrate the mutual shielding effect and the potential of the methods we have proposed to reduce its impacts.
- Subjects
ULTRA-wideband radar; TRACKING radar; SENSOR networks; ELECTROMAGNETIC shielding; WIRELESS communications
- Publication
EURASIP Journal on Wireless Communications & Networking, 2017, Vol 2017, Issue 1, p1
- ISSN
1687-1472
- Publication type
Article
- DOI
10.1186/s13638-017-0847-x