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Interference mitigation using a dual-polarized antenna in a real environment

Sgammini, Matteo and Caizzone, Stefano and Iliopoulos, Andreas and Hornbostel, Achim and Meurer, Michael (2016) Interference mitigation using a dual-polarized antenna in a real environment. In: gnss. ION GNSS+ 2016, Portland, Oregon, USA.

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Abstract

In this paper we present a novel approach to interference mitigation. We propose to equip a GNSS receiver with a diversely polarized antenna array in order to combine signal processing in the spatial and in the polarization domain in a novel way. The new algorithm is evaluated by means of measurement data obtained during a measurement campaign which has been carried out in the Automotive Testing Center in Aldenhoven, Germany. The results of the measurement campaign show a significant improvement in receiver robustness against interferences when the dual-polarization approach is used when compared with the general single-polarization case. The benefits that come to light using dual-polarization are of a dual nature. First the carrier-to-noise-density ratios of the line-of-sight components are improved since the receiver can make use of the RHCP power present on the left-hand circularly polarized (LHCP) channels due to non-ideal polarization purity of the antenna, in particular for satellites with low elevation, resulting in better receiver computed position, velocity and time (PVT) solutions. Secondly, the interference mitigation becomes more effective due to the possibility of filtering in the polarization domain and the additional number of available degrees of freedom, increasing the receiver robustness and enabling tracking and PVT also in severe interference scenario

Item URL in elib:https://elib.dlr.de/113491/
Document Type:Conference or Workshop Item (Speech)
Title:Interference mitigation using a dual-polarized antenna in a real environment
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Sgammini, MatteoMatteo.Sgammini (at) dlr.deUNSPECIFIED
Caizzone, StefanoStefano.Caizzone (at) dlr.deUNSPECIFIED
Iliopoulos, AndreasAndreas.Iliopoulos (at) dlr.deUNSPECIFIED
Hornbostel, AchimAchim.Hornbostel (at) dlr.deUNSPECIFIED
Meurer, MichaelMichael.Meurer (at) dlr.deUNSPECIFIED
Date:September 2016
Journal or Publication Title:gnss
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Interference, GNSS, Dual Polarized Antenna Array
Event Title:ION GNSS+ 2016
Event Location:Portland, Oregon, USA
Event Type:international Conference
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication and Navigation
DLR - Research area:Raumfahrt
DLR - Program:R KN - Kommunikation und Navigation
DLR - Research theme (Project):R - Project Dependable Navigation
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Navigation
Deposited By: Caizzone, Stefano
Deposited On:08 Aug 2017 12:13
Last Modified:09 Feb 2018 09:35

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