INSPIRe
INSPIRe (Integrated Navigation System-of-Systems PNT for Resilience) was an 18-month project to define practical measures that could be implemented to indicate the confidence a user should have in their PNT solution.
User confidence in position, navigation and timing
Position, Navigation and Timing (PNT) is critical for safety in maritime and other sectors – but can users trust the position, speed and heading displayed by their satellite navigation systems, and the time provided by satellite derived clocks which is used by many bridge systems?
INSPIRe (Integrated Navigation System-of-Systems PNT for Resilience) was an 18-month project to define practical measures that could be implemented to indicate the confidence a user should have in their PNT solution.
Providing a level of confidence is what we mean by integrity – ensuring that the data displayed to the user is sufficiently reliable for the manoeuvres in progress at the time, and warning the user if it is not. This has two components: system level integrity – are the raw signals transmitted by the satellites compromised? – and user level integrity – have good satellite signals been degraded at the point of use by local factors?
Trustworthy positioning and timing is critical to support the growing use of such data within the maritime sector and more so when the room to manoeuvre is reduced due to increasing offshore renewable energy production and other such infrastructure.
INSPRe was funded by the European Space Agency’s (ESA) Navigation Innovation and Support Programme (NAVISP) and built on the earlier NAVISP-funded MarRINav project. This programme ran from July 2022 to February 2024.
Partners
Focus areas
The INSPIRe project comprised the following themes:
- Integrity monitoring within the satellite navigation receiver, generally known as Receiver Autonomous Integrity Monitoring (RAIM), in various configurations.
- Monitoring additional supporting signals provided for professional satellite navigation receivers, in this case the European Geostationary Navigation Overlay Service (EGNOS).
- Opportunistic data to aid integrity.
- Cost benefit analysis of the techniques developed in the project.
- Exploitation plan for these techniques.
Work completed
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- Technical study on Maritime General Receiver Autonomous Integrity Monitoring (M(G)RAIM)
- Software design and test specifications for single-frequency GPS
- Technical Report of Developments and Test of DFMC M(G)RAIM
- Functional and Software Design and Test Specifications – DFMC M(G)RAIM
- Technical Report of Developments and Test of DFMC GNSS and DR VAIM
- Functional and Software Design and Test Specifications – DFMC & DR VAIM
Intelligent Supply Chains
Within supply chains, digital technologies have transformed the way that we live our lives. The purpose of this strategic case is to set the context for intervention by the UK space sector and HM Government, to address opportunities to improve the supply chains ecosystem for goods and services in the UK.
By RethinkPNT
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