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Characterization of a Transmitter in a Medium Frequency Maritime Terrestrial Navigation System

Grundhöfer, Lars and Gewies, Stefan and Hehenkamp, Niklas and Hoppe, Michael and Walterfang, Mario (2019) Characterization of a Transmitter in a Medium Frequency Maritime Terrestrial Navigation System. In: IEEE Conference on Intelligent Transportation Systems, Proceedings, ITSC. ITSC 2019, 27.-30.Okt 2019, Auckland, Neuseeland. DOI: 10.1109/ITSC.2019.8916992

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Abstract

Due to the worldwide recognition of increased jamming and spoofing events, which threaten the usability of global navigation satellite systems (GNSS), positioning systems using signals of opportunity are gaining importance as backup systems. Especially for maritime usage, a terrestrial system called Ranging-Mode (R-Mode) is under development. Among other signals, it utilizes the maritime medium frequency broadcasts of the differential GNSS (DGNSS) service. Currently, the estimation of phase in a time continuous medium frequency signal is used to determine the distance between transmitter and receiver. Here, the delay of a transmitter on the signal phase is of great interest, since it directly affects the performance of the R-Mode system. In this paper, the influence of a medium frequency power amplifier is characterized as part of the transmitter chain. The aim is to give the operators of DGNSS stations the possibility to characterize their station themselves when the R-Mode system is operational. Therefore, widely used measuring instruments are utilized, rather than using well-known cost-intensive techniques like phase delay measurements. A simple setup with different evaluation methods that fit this requirement is presented. Furthermore, it is capable of measuring the absolute time delay. The presented workflow was tested on an amplifier with output power of 100W at the transmitter station near Koblenz, Germany.

Item URL in elib:https://elib.dlr.de/131048/
Document Type:Conference or Workshop Item (Speech)
Title:Characterization of a Transmitter in a Medium Frequency Maritime Terrestrial Navigation System
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Grundhöfer, LarsLars.Grundhoefer (at) dlr.deUNSPECIFIED
Gewies, StefanStefan.Gewies (at) dlr.deUNSPECIFIED
Hehenkamp, Niklasniklas.hehenkamp (at) dlr.deUNSPECIFIED
Hoppe, MichaelTraffic Technologies Centre of German Federal Waterways and Shipping AdministrationUNSPECIFIED
Walterfang, MarioTraffic Technologies Centre of German Federal Waterways and Shipping AdministrationUNSPECIFIED
Date:2019
Journal or Publication Title:IEEE Conference on Intelligent Transportation Systems, Proceedings, ITSC
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
DOI :10.1109/ITSC.2019.8916992
Status:Published
Keywords:R-Mode, Transmitter. Medium Frequency
Event Title:ITSC 2019
Event Location:Auckland, Neuseeland
Event Type:international Conference
Event Dates:27.-30.Okt 2019
Organizer:IEEE
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Transport System
DLR - Research area:Transport
DLR - Program:V VS - Verkehrssystem
DLR - Research theme (Project):V - I4Port
Location: Neustrelitz
Institutes and Institutions:Institute of Communication and Navigation > Nautical Systems
Deposited By: Grundhöfer, Lars
Deposited On:26 Nov 2019 10:36
Last Modified:04 Dec 2019 13:15

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