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Multipath Assisted Positioning for Pedestrians using LTE Signals

Ulmschneider, Markus und Gentner, Christian (2016) Multipath Assisted Positioning for Pedestrians using LTE Signals. In: Proceedings of the IEEE/ION Position, Location and Navigation Symposium, PLANS 2016. IEEE/ION PLANS 2016, 2016-04-11 - 2016-04-14, Savannah, USA. doi: 10.1109/PLANS.2016.7479725.

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Kurzfassung

The rapid growth of available services depending on location awareness has led to a more and more increasing demand for positioning in challenging environments. Global navigation satellite system (GNSS) based positioning methods may fail or show weak performance in indoor and urban scenarios due to blocking of the signals and multipath propagation. In contrast, cellular radio signals provide better reception in these scenarios due to a much higher transmit power. Also, they offer high coverage in most urban areas. However, they also undergo multipath propagation, which deteriorates the positioning performance. In addition, there are often only one or two base stations within communication range of the user. Both of these problems can be solved by means of a multipath-assisted positioning approach. The idea is to exploit multipath components (MPCs) arriving at the receiver via multiple paths due to scattering or reflections. Such approaches highly depend on the ability to resolve the MPCs at the receiver. This is why multipath-assisted positioning schemes typically assume ultra-wideband systems. Today’s cellular radio systems work with much smaller bandwidths, though. The 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) standard uses bandwidths up to 20 MHz. The aim of this paper is to show by means of measurements that multipath-assisted positioning is possible using 3GPP-LTE signals with only two base stations. We apply an advanced signal processing algorithm to track MPCs arriving at the mobile terminal, and to estimate the position of the mobile terminal. Since each of the MPCs can be regarded as being sent from some physical or virtual transmitter, we estimate the positions of transmitters in addition. We incorporate heading information from an inertial measurement unit carried by the mobile terminal to improve the positioning performance. Assuming only the starting position and direction of the mobile terminal to be known, the results show that the root mean square positioning error of the mobile terminal is always below 3 meters. In 90% of the cases, it is below 1.84 meters.

elib-URL des Eintrags:https://elib.dlr.de/103301/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Multipath Assisted Positioning for Pedestrians using LTE Signals
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Ulmschneider, Markusmarkus.ulmschneider (at) dlr.dehttps://orcid.org/0000-0001-7241-7057NICHT SPEZIFIZIERT
Gentner, ChristianChristian.Gentner (at) dlr.dehttps://orcid.org/0000-0003-4298-8195NICHT SPEZIFIZIERT
Datum:April 2016
Erschienen in:Proceedings of the IEEE/ION Position, Location and Navigation Symposium, PLANS 2016
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Nein
DOI:10.1109/PLANS.2016.7479725
Status:veröffentlicht
Stichwörter:ChannelSLAM, multipath assisted positioning, LTE
Veranstaltungstitel:IEEE/ION PLANS 2016
Veranstaltungsort:Savannah, USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:11 April 2016
Veranstaltungsende:14 April 2016
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Kommunikation und Navigation
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R KN - Kommunikation und Navigation
DLR - Teilgebiet (Projekt, Vorhaben):R - Projekt Verläßliche Navigation (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Kommunikation und Navigation > Nachrichtensysteme
Hinterlegt von: Ulmschneider, Markus
Hinterlegt am:03 Jun 2016 16:45
Letzte Änderung:24 Apr 2024 20:08

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