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Robust Snapshot Positioning in Multi-Antenna Systems for Inland Water Applications

Lass, Christoph (2017) Robust Snapshot Positioning in Multi-Antenna Systems for Inland Water Applications. In: PIANC - Smart Rivers 2017. PIANC - Smart Rivers 2017, 2017-09-18 - 2017-09-21, Pittsburgh, USA.

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Kurzfassung

Abstract: Global Navigation Satellite Systems (GNSS) are increasingly used as the main source of Positioning, Navigation and Timing (PNT) information for inland water navigation. Therefore, it becomes of crucial importance to ensure reliability and accuracy of the GNSS-based navigation solution for challenging inland waterway environments like locks or bridges where effects such as multipath and non-line-of-sight (NLOS) can occur. This work extends the single-antenna snapshot positioning solver to a multi-antenna snapshot positioning and orientation solver. In contrast to a single position calculation for each individual antenna, this combined approach allows position and orientation calculation even in the case that each antenna has less than four observations. Any additional observation can be used in a robust estimation framework, for instance by applying the S-estimator, to lessen the impact of NLOS effects. Moreover, different weighting options for the satellite signals are considered where the elevation angle of the satellites, as well as the signal-to-noise ratio measured by the receiver, is taken into account. The presented scheme is evaluated using real measurement data from an inland water scenario with multiple bridges and a waterway lock. With regard to single-antenna algorithms the initial results are encouraging and clearly indicate the advantage of the combined position and orientation calculation with multiple GNSS antennas, especially in scenarios where direct GNSS signals are obstructed. Also the multi-antenna scheme in combination with a robust estimation framework shows the potential to be used in advanced driver assistance systems for integrated navigation as well as autonomous shipping. Why of interest? Well-known robust methods such as the S-estimator can easily be applied to this scheme and in such further help with NLOS as well as multipath effects. This allows for reliable driver assistance systems which are of utmost importance since the majority of inland water accidents are caused by human faults. Therefore, the need for robust navigation schemes such as this is as high as it has ever been.

elib-URL des Eintrags:https://elib.dlr.de/118875/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Robust Snapshot Positioning in Multi-Antenna Systems for Inland Water Applications
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Lass, Christophchristoph.lass (at) dlr.dehttps://orcid.org/0000-0001-9998-0632NICHT SPEZIFIZIERT
Datum:21 September 2017
Erschienen in:PIANC - Smart Rivers 2017
Referierte Publikation:Nein
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:Navigation, Positioning, GNSS, Robust Methods, Multi-Antenna
Veranstaltungstitel:PIANC - Smart Rivers 2017
Veranstaltungsort:Pittsburgh, USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:18 September 2017
Veranstaltungsende:21 September 2017
Veranstalter :PIANC
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Verkehr
HGF - Programmthema:keine Zuordnung
DLR - Schwerpunkt:Verkehr
DLR - Forschungsgebiet:V - keine Zuordnung
DLR - Teilgebiet (Projekt, Vorhaben):V - keine Zuordnung
Standort: Neustrelitz
Institute & Einrichtungen:Institut für Kommunikation und Navigation > Nautische Systeme
Hinterlegt von: Lass, Christoph
Hinterlegt am:09 Feb 2018 09:38
Letzte Änderung:24 Apr 2024 20:23

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