Through-the-Wall Localization of a Moving Target by Two Independent Ultra Wideband (UWB) Radar Systems

In the case of through-the-wall localization of moving targets by ultra wideband (UWB) radars, there are applications in which handheld sensors equipped only with one transmitting and two receiving antennas are applied. Sometimes, the radar using such a small antenna array is not able to localize th...

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Autores principales: Kocur, Dušan, Švecová, Mária, Rovňáková, Jana
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3820146/
https://www.ncbi.nlm.nih.gov/pubmed/24021968
http://dx.doi.org/10.3390/s130911969
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author Kocur, Dušan
Švecová, Mária
Rovňáková, Jana
author_facet Kocur, Dušan
Švecová, Mária
Rovňáková, Jana
author_sort Kocur, Dušan
collection PubMed
description In the case of through-the-wall localization of moving targets by ultra wideband (UWB) radars, there are applications in which handheld sensors equipped only with one transmitting and two receiving antennas are applied. Sometimes, the radar using such a small antenna array is not able to localize the target with the required accuracy. With a view to improve through-the-wall target localization, cooperative positioning based on a fusion of data retrieved from two independent radar systems can be used. In this paper, the novel method of the cooperative localization referred to as joining intersections of the ellipses is introduced. This method is based on a geometrical interpretation of target localization where the target position is estimated using a properly created cluster of the ellipse intersections representing potential positions of the target. The performance of the proposed method is compared with the direct calculation method and two alternative methods of cooperative localization using data obtained by measurements with the M-sequence UWB radars. The direct calculation method is applied for the target localization by particular radar systems. As alternative methods of cooperative localization, the arithmetic average of the target coordinates estimated by two single independent UWB radars and the Taylor series method is considered.
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spelling pubmed-38201462013-11-09 Through-the-Wall Localization of a Moving Target by Two Independent Ultra Wideband (UWB) Radar Systems Kocur, Dušan Švecová, Mária Rovňáková, Jana Sensors (Basel) Article In the case of through-the-wall localization of moving targets by ultra wideband (UWB) radars, there are applications in which handheld sensors equipped only with one transmitting and two receiving antennas are applied. Sometimes, the radar using such a small antenna array is not able to localize the target with the required accuracy. With a view to improve through-the-wall target localization, cooperative positioning based on a fusion of data retrieved from two independent radar systems can be used. In this paper, the novel method of the cooperative localization referred to as joining intersections of the ellipses is introduced. This method is based on a geometrical interpretation of target localization where the target position is estimated using a properly created cluster of the ellipse intersections representing potential positions of the target. The performance of the proposed method is compared with the direct calculation method and two alternative methods of cooperative localization using data obtained by measurements with the M-sequence UWB radars. The direct calculation method is applied for the target localization by particular radar systems. As alternative methods of cooperative localization, the arithmetic average of the target coordinates estimated by two single independent UWB radars and the Taylor series method is considered. MDPI 2013-09-09 /pmc/articles/PMC3820146/ /pubmed/24021968 http://dx.doi.org/10.3390/s130911969 Text en © 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/).
spellingShingle Article
Kocur, Dušan
Švecová, Mária
Rovňáková, Jana
Through-the-Wall Localization of a Moving Target by Two Independent Ultra Wideband (UWB) Radar Systems
title Through-the-Wall Localization of a Moving Target by Two Independent Ultra Wideband (UWB) Radar Systems
title_full Through-the-Wall Localization of a Moving Target by Two Independent Ultra Wideband (UWB) Radar Systems
title_fullStr Through-the-Wall Localization of a Moving Target by Two Independent Ultra Wideband (UWB) Radar Systems
title_full_unstemmed Through-the-Wall Localization of a Moving Target by Two Independent Ultra Wideband (UWB) Radar Systems
title_short Through-the-Wall Localization of a Moving Target by Two Independent Ultra Wideband (UWB) Radar Systems
title_sort through-the-wall localization of a moving target by two independent ultra wideband (uwb) radar systems
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3820146/
https://www.ncbi.nlm.nih.gov/pubmed/24021968
http://dx.doi.org/10.3390/s130911969
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