INSPIRe
INSPIRe (Integrated Navigation System-of-Systems PNT for Resilience) is an 18-month project to define practical measures that could be implemented to indicate the confidence a user should have in their PNT solution.
Overview
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) is 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 is funded by the European Space Agency’s (ESA) Navigation Innovation and Support Programme (NAVISP) and builds on the earlier NAVISP-funded MarRINav project. This programme started in July 2022 and will finish at the end of 2023.
Partners
Project briefing and consultation hybrid event
A hybrid briefing/consultation event for the INSPIRe project took place on 27th February. The event explored the aims and content of the INSPIRe project, expert views on users’ PNT integrity needs were captured and we discussed use cases that will underpin the programme and outputs moving forwards.
View slides from the event
Programme detail
Focus areas
The INSPIRe project comprises 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.
Core activities
In more detail, INSPIRe includes these activities:
- Develop and test algorithms for Maritime General RAIM (MGRAIM) using single-frequency GPS.
- Develop and test algorithms for dual frequency, multi-constellation (DFMC) RAIM.
- Develop and test DFMC RAIM algorithms extended to include dead reckoning – vessel RAIM.
- Develop EGNOS monitoring software.
- Develop a RAIM availability prediction tool.
Some initial results have been drafted and publication is awaiting approval from ESA. Reports will be made available on this page soon.
Strategic Case for Intervention report
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
Read report
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Get involved
If you’re interested in finding out more about the programme, please get in touch with Bob Cockshott, INSPIRe stakeholder engagement work package manager.
We are particularly interested in your answers to the following questions:
- Are you a user or a supplier of position, navigation and timing (PNT), or just interested?
- What sector do you work in (industry, academia, government, other)?
- How important is PNT integrity (trustworthiness) to you?
- How could existing systems be improved?
- What do you need from a PNT system?
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