Cristin-resultat-ID: 2218936
Sist endret: 26. januar 2024, 16:01
NVI-rapporteringsår: 2023
Resultat
Vitenskapelig artikkel
2023

Analysis of 5G and LTE Signals for Opportunistic Navigation and Time Holdover

Bidragsytere:
  • Adrian Winter
  • Aiden J Morrison og
  • Nadezda Sokolova

Tidsskrift

Sensors
ISSN 1424-8220
e-ISSN 1424-8220
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2023
Publisert online: 2023
Volum: 24
Hefte: 1
Artikkelnummer: 213
Open Access

Importkilder

Scopus-ID: 2-s2.0-85181904056

Klassifisering

Vitenskapsdisipliner

Informasjons- og kommunikasjonsteknologi

Emneord

Navigasjon

Beskrivelse Beskrivelse

Tittel

Analysis of 5G and LTE Signals for Opportunistic Navigation and Time Holdover

Sammendrag

The purpose of this study was to evaluate the stability and therefore suitability of available fifth generation (5G) and long-term evolution (LTE) signals for positioning navigation and timing (PNT) purposes with particular focus on answering questions around the time-scale-dependent stability of these sources, which, to our knowledge, has not been addressed in the context of the numerous publications within the PNT community to date. The methodology used directly measured the over-the-air signal phase stability to one or more of the cellular signal sources that were visible from the lab environment simultaneously while using a local atomic clock or differential measurements to isolate the time stability of the observable cellular downlink signals. This approach was taken since it does not require subscription or association with the networks under test. Instead, it exploits a ‘signal of opportunity’ (SoP) approach to signal use for PNT purposes. The somewhat surprising result is that the time domain instability of the sources was highly variable, dependent on the implementation choices of the operator, and that the stability of even the modernized towers was generally best at interrogation intervals of approximately 0.01 s, which indicates that the existing exploitation of these signals within the PNT community has substantial room for improvement through simple changes to the selected update rate used.

Bidragsytere

Adrian Winter

  • Tilknyttet:
    Forfatter
    ved Institutt for teknisk kybernetikk ved Norges teknisk-naturvitenskapelige universitet

Aiden James Morrison

Bidragsyterens navn vises på dette resultatet som Aiden J Morrison
  • Tilknyttet:
    Forfatter
    ved Sustainable Communication Technologies ved SINTEF AS

Nadezda Sokolova

  • Tilknyttet:
    Forfatter
    ved Sustainable Communication Technologies ved SINTEF AS
1 - 3 av 3