An Assessment of Long-term Spatial Agnosticism of GNSS Positioning Degradation Risks Due to Ionospheric Conditions

• Autorzy: Sikirica Nenad , Hedji Ivan , Mikša Marko , Brčić David , Ciriković Enes , Filjar Renato

Identyfikatory

DOI

10.12716/1001.19.01.11

• Języki publikacji: EN

Abstrakty

EN

The Global Navigations Satellite Systems (GNSS) have been evolved into an essential infrastructure of modern civilisation, a public goods, and enabler of rapidly growing number of technology and socio-economic applications. However, GNSS applications often lack fundamental details on GNSS Positioning, Navigation, and Timing (PNT services performance to define and determine their Quality of Service (QoS). The lack of alignment with the core GNSS PNT deprives GNSS applications of assessing the risks of the GNSS PNT utilisation, thus leaving GNSS applications unable to prepare alternatives and mitigate the causes of GNSS PNT performance disruptions. Here we contributed to solution of the problem with the introduction and long-term performance assessment of the risk model of ionospheric-caused GNSS positioning degradation. Called the Probability of Occurrence (PoO), our team defined the risk model of GNSS positioning degradation caused by ionospheric conditions based on the long term observations of occurrences of degraded GNSS positioning performance. In the process of the GNSS risk model validation, the long-term PoO risk models are developed using the annual 2014 stationary GNSS horizontal positioning error observations derived from the GNSS pseudoranges collected at the International GNSS Service (IGS) reference stations situated in polar (Iqaluit, Canada) and sub-equatorial regions (Darwin, Australia). Two GNSS risk models are compared for similarity using statistical methods of Hausdorff distance and Cramér–von Mises statistical test. Research results show that two GNSS risk models are spatially agnostic, since no significant difference in two long-term GNSS risk models is found. The research results supports the conclusion of generality of the PoO GNSS risk model, and its ability to serve GNSS applications developers, operators, and users in determination of the QoS of particular GNSS applications.

Słowa kluczowe

EN

risk assessment; accuracy; Positioning, Navigation and Timing; PNT; GNSS; Global Navigation Satellite System; statistical analysis; ionosphere; space weather

• Wydawca: Faculty of Navigation, Gdynia Maritime University
• Czasopismo: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
• Rocznik: 2025
• Tom: Vol. 19 No. 1
• Strony: 85--89
• Opis fizyczny: Bibliogr. 18 poz., rys., tab.

Twórcy

autor

Sikirica Nenad

• University of Aplied Sciences Hrvatsko zagorje Krapina, Krapina, Croatia

• https://orcid.org/0000-0002-8222-9110

autor

Hedji Ivan

• Virovitica University of Applied Sciences, Virovitica, Croatia

autor

Mikša Marko

• University of Aplied Sciences Hrvatsko zagorje Krapina, Krapina, Croatia

autor

Brčić David

• University of Rijeka, Rijeka, Croatia

• https://orcid.org/0000-0003-0643-841X

autor

Ciriković Enes

• Virovitica University of Applied Sciences, Virovitica, Croatia

• https://orcid.org/0000-0003-0643-841X

autor

Filjar Renato

• University of Aplied Sciences Hrvatsko zagorje Krapina, Krapina, Croatia
• University of Rijeka, Rijeka, Croatia

• https://orcid.org/0000-0002-7040-9931

Bibliografia

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Uwagi

1. Pełne imiona podano na stronie internetowej czasopisma w "Authors in other databases."

2. Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).