Representatives from organizations involved in the UK Sovereign Satellite Based Augmentation System. (Image: Viasat)
Viasat, a global communications company, has successfully demonstrated the UK Satellite-Based Augmentation System (UK SBAS) during a recent test flight. This demonstration, conducted as part of an ongoing trial funded by the Department for Transport through the European Space Agency (ESA), showcased the potential of UK SBAS to provide accurate GPS data to improve safety and operational efficiency.
“The trial on a sovereign UK SBAS is all about delivering trust. Trust for pilots in their tracking systems to stay safe in challenging conditions. Trust for the aviation industry more broadly so it can rely on data to operate more efficiently,” said Todd McDonnell, president, international government, Viasat.
The test flight, carried out from Cranfield Airport using the National Flying Laboratory Centre’s Saab 340B aircraft, demonstrated the capabilities of a UK-based SBAS to deliver more precise and reliable navigation data. With the UK no longer part of the EU’s European Geostationary Navigation Overlay Service (EGNOS), the trial aims to pave the way for a complementary UK SBAS, specifically designed for critical safety-of-life navigation services across air, land and sea.
UK SBAS operates by merging ground monitoring data with satellite connectivity, which offers positioning accuracy down to a few centimeters. The system aims to significantly enhance safety in aviation by providing pilots with confidence in their onboard instruments, particularly during challenging weather conditions where visibility may be limited.
The successful aviation test marks a crucial step in further trials across various transport applications, including rail, unmanned aerial vehicles, and autonomous road vehicles, said Viasat.
Fully funded by the government through ESA’s Navigation Innovation and Support Program (NAVISP) program, the trial aligns with broader efforts to deliver high-accuracy, high-integrity positioning services to boost efficiency and innovation across the transport network.
The European Union Aviation Safety Agency (EASA) has certified Madrid-based European Satellite Services Provider (EESP) as a pan-European communication services provider for Iris data link services.
Iris, a project supported by the European Space Agency (ESA) and various European partners, aims to develop a satellite-based air-ground communication system to enhance air traffic management. By 2028, Iris will enable full 4D trajectory management of airspaces globally, making it a crucial means of communication between cockpit crews and controllers.
The certification of ESSP as an Iris data link services provider comes after more than a year of testing and audits at both ESSP and Inmarsat premises. The certification establishing compliance with relevant regulations and associated industrial standards for data link services.
Additionally, ESSP recently signed a long-term contract with Viasat/Inmarsat to act as the Service Provider for Iris data link services, powered by Viasat’s SwiftBroadband Safety (SB-S) connectivity. As The European Geostationary Navigation Overlay Service (EGNOS) service provider, ESSP is already under a long-term contract with the European Agency for the Space Program (EUSPA), where it carries out EGNOS operations and maintenance.
Iris is scheduled to be fully operational in Europe by 2024, providing services to airlines such as easyJet and ITA Airways. ESSP will lead the commercialization of Iris services, targeting European Air Navigation Service Providers (ANSPs). The service provision consortium includes ESSP SAS, Inmarsat, and SITA, with other communication network providers expected to join in the future.
The European Union Agency for the Space Programme (EUSPA) has announced that as of June 1, the latest European Geostationary Navigation Overlay Service (EGNOS) payload is operational ahead of the first V3 test signals.
Launched onboard the EUTELSAT Hotbird 13G satellite in November 2022, the payload underwent a rigorous testing phase before entering service. It is expected to have a 15-year life span.
EGNOS V3 will augment both GPS and Galileo in the L1 and L5 bands. It is also set to provide additional satellite-based augmentation system (SBAS) service capabilities through a new SBAS channel on L5 and will deliver increased EGNOS service availability within and beyond the EU, supporting a growing number of users.
Aviation has benefitted greatly from the EGNOS safety of life service. This has enabled better access to small and regional airports, increased safety, and facilitated more sustainable flight routes across Europe. Other industries, such as maritime and rail, also benefit from the EGNOS safety of life service.
In addition, with its Open Service, EGNOS increases the positioning accuracy for other land-based applications including precision farming, geomatics and land management.
About EGNOS
EGNOS is Europe’s regional SBAS. It is used to improve the performance of GPS and will augment Galileo from 2025 onwards. EGNOS was deployed to provide safety of life navigation services to aviation, maritime and land-based users.
The information provided by EGNOS improves the accuracy and reliability of GNSS positioning information while also providing a crucial integrity message. In addition, EGNOS also transmits an accurate time signal.
On Dec. 7, the European Geostationary Navigation Overlay Service (EGNOS) V3, a satellite-based navigation augmentation system designed by Airbus, passed the System Critical Design Review (CDR). EGNOS V3 supports safety-critical aircraft applications and will soon provide services to maritime and land users.
New services provided by EGNOS V3 are based on multiple frequencies from GPS and Galileo constellations and will provide protection against cyberattacks. As it successfully passed CDR, this multi-constellation and multi-frequency satellite-based navigation augmentation system is a step forward in improving EGNOS accuracy, robustness, and overall coverage in Europe.
EGNOS V3 relies on three operation centers and 44 monitoring stations across Europe. It monitors the signals from satellite navigation systems and generates augmentation messages broadcast to all users using transponders and geostationary satellites. Airbus is currently designing more Galileo satellites, which will further improve EGNOS accuracy and robustness and the resilience of its signal.
EGNOS is a component of the European Union Space Program and is managed in partnership with the European Commission’s Directorate-General for Defense, Industry and Space, the European Union Agency for the Space Programme (EUSPA) and the European Space Agency (ESA).
Europe’s regional satellite-based augmentation system (SBAS), EGNOS, has received upgrades to advance the reliability of GNSS positioning information, according to EUSPA.
Historically, EGNOS has provided safe, uninterrupted satellite navigation services to aviators, and some maritime, railroad, and land-based users in Europe. This system upgrade includes extending its service area, adding advanced functionalities, and reinforcing dual-frequency and multi-constellation services.
The EGNOS V242B system upgrade will expand services outside of its service area and enhance availability to users. Additionally, the upgrade ensures aviator access to lifesaving services such as Localizer Performance with Vertical Guidance (LPV)-200. The upgrade also includes more advanced data processing functions to cater to increased issues with peak solar activity and ionospheric phenomena that interfere with EGNOS signals and services.
Dual-frequency and multi-constellation services were also improved in the EGNOS upgrade. The improvements revamped EGNOS Version 2, and reinforced EGNOS services before launching EGNOS Version 3 (V3).
EGNOS delivers two frequencies and has amplified Galileo signals, hence creating a multi-constellation capability. When EGNOS V3 is launched, it will offer additional services and enhance protection against cyberattacks, further advancing EGNOS’ safety-critical applications across Europe.
EHang deployed its EH216 eVTOL for flight trials in Europe including the recent Air Mobility Urban-Large Experimental Demonstration. (Photo: EHang)
EHang will deploy its EH216 autonomous aerial vehicle in a European Union-funded project that is assessing how the European Geostationary Navigation Overlay Service (EGNOS) could be used for electric vertical-takeoff-and-landing (eVTOL) aircraft operations.
The fully autonomous, all-electric vehicle will be used for flight trials at Lleida-Alguaire Airport in Spain as part of the Satellite Based Augmentation System Adoption in Multicopter VTOL Aircraft (SAMVA) program.
As part of an initiative of the European Union Agency for the Space Programme (EUSPA), the SAMVA project is tasked with establishing how EGNOS could support planned air mobility services, including eVTOL air taxi flights. It is also intended to prepare for uncrewed vehicles to use the new U-Space concept for managing autonomous or remotely piloted aircraft.
Aeroports de Catalunya will help China-based EHang to establish an operational center at its Lleida-Alguaire facility in the Catalonian region of northeast Spain. The EH216 will use the EGNOS technology to conduct unmanned traffic management (UTM) tasks and to demonstrate how eVTOL aircraft could operate in urban environments, including to and from airports.
EHang is working to achieve Chinese certification for the two-seat EH216, which it intends to deploy with partners and customers for services such as air taxi and sightseeing flights. It also aims to get approval for its aircraft to operate in Europe and has been active in other air mobility partnerships in Europe, where it has provisional customers in places like Norway.
In October, EHang completed its participation in the European Union’s Air Mobility Urban-Large Experimental Demonstration (AMU-LED) with a series of flight tests in Spain. The company — one of 16 consortium members in the AMU-LED program — demonstrated the EH216 at the Rozas Airborne Research Center, which is part of Spain’s National Institute of Aerospace Technology.
“The SAMVA project will unleash EGNOS capabilities aboard EHang’s EH216 AAV to provide precise and integral navigation guidance and support U-Space airspace integration,” said Victoria Jing Xiang, the company’s chief operating officer for Europe and Latin America. “Our participation in this project reflects the meaningful progress we’ve made overseas with our strong technologies as our global footprint expands.”
Europe’s 2nd Horizon Europe call has been launched for European GNSS, Galileo and Earth observation projects, offering total funding of €48.1 million.
The Horizon program is managed by the European Union Agency for the Space Programme (EUSPA). It funds research and innovation by small and mid-size enterprises, academia, public actors and others that will stimulate development of space applications and solutions using EUSPA data and services.
The 2nd call aims to to strengthen downstream capabilities and modernize the EU public sector by offering cutting-edge solutions based on Galileo, Copernicus, EGNOS and GOVSATCOM.
Funding is being offered for projects that make use of Galileo and EGNOS in smart mobility applications. Other projects fuse Copernicus data with artificial intelligence to boost the European economy and help modernize the public sector. For the first time, the call seeks to deliver satellite communication use cases based on the forthcoming GOVSATCOM system.
Below is a breakdown of the funds’ distribution per thematic area.
Visit the EU’s funding & tender opportunities portal for detailed information about the EUSPA call and the topics available. The deadline for applications is March 2, 2023.
Europe’s leading companies and research institutes working on positioning, navigation and timing (PNT) technologies met in the Netherlands in mid-June for this year’s NAVISP Industry Days. The event is devoted to the latest developments in the Navigation Innovation and Support Program (NAVISP), sponsored by the European Space Agency (ESA).
NAVISP is focused on navigation technologies beyond Galileo and EGNOS, with many of the same engineers that led the development of Europe’s own satnav constellation working with European industry and academia on exciting new concepts.
Photo: ESA
About 130 people participated in the two-day event, which took place June 16-17 at the ESA-ESTEC center in Noordwijk aan Zee, The Netherlands.
As well as attending presentations on NAVISP projects, participants had the opportunity to meet and talk shop in the exhibition area, which displayed products and hardware such as an improved-accuracy smartphone board and drones for data gathering.
The PNT sector accounts for 10% of the European economy.
Throughout Industry Days, the importance of innovation for competitiveness was highlighted, to enable companies to adapt to rapid technological change in the fast-growing PNT sector, which today accounts for 10% of the European economy.
“NAVISP’s strength lies in supporting all types of actors, from start-ups and SMEs to large enterprises, and space companies to companies in other sectors that have recognized the added value of PNT solutions,” said Pierluigi Mancini, NAVISP program manager. “That means playing a part in advancing research and product development, as well as commercialization to broadly foster and support European industry in addressing technology, market and regulatory risks.”
At the Industry Days, many different projects across varying market areas along different points in the value chain were highlighted such as air mobility testbeds, new technologies for roads and other infrastructure, support for maritime navigation, development of novel PNT satellites, studies for quantum-based PNT, and weather monitoring based on collaborative crowdsourcing.
The innovation potential of NAVISP activities was underlined by the fact that two new Navigation Directorate programs set to be proposed to ESA’s Council of Ministers this November — the in-orbit demonstration of low-Earth orbit PNT services and the GENESIS mission for precision Earth measurement — originated in NAVISP projects.
The entire set of the NAVISP Industry Days presentations can be found here.
Contract signed with EUSPA to develop the next version of EGNOS
Thales Alenia Space, the joint venture between Thales (67%) and Leonardo (33%), has signed a new contract with the EU Agency for the Space Programme (EUSPA) to develop, qualify and deploy the new European Geostationary Navigation Overlay Service (EGNOS) version.
Thales Alenia Space has also just reached a new milestone in the Galileo program with the integration of a new satellite into Galileo’s Ground Mission Segment (GMS) which will improve positioning service for 3.3 billion users.
EGNOS Upgrade
Thales Alenia Space will provide EUSPA and the EU navigation community with a new version of EGNOS (V243). Its operations will be secured by a new state-of-the art Navigation Land Earth Station technology developed by Thales Alenia Space – NLES-G3.
The NLES transmits the EGNOS message containing all accuracy and integrity corrections to the geostationary satellites for broadcast to users such as aviation operators. Thales Alenia Space NLES-G3 will be integrated with a new geostationary satellite, GEO3, which will enhance the EGNOS system and its end-to-end performance.
Certification and commissioning of this latest version is slated for 2024.
Galileo Milestone
Thales Alenia Space also is the prime contractor for Galileo First Generation’s Ground Mission Segment. Galileo has achieved a milestone with the Galileo constellation approaching final steps before its completion with the GSAT0223 satellite. GSAT0223 will increase the operational constellation to 23 satellites for positioning and 25 for search and rescue.
The new satellite has successfully been positioned in orbit and its payload signals inserted in the Ground Mission Segment (GMS) operational chain of Galileo. The GMS is generating the world’s most accurate satellite ephemerids, enabling decimetric ranging accuracy.
With the entry in service of this satellite, the GMS now serves more than 3,3 billion Galileo users who will benefit from an enhanced positioning and timing service.
The tests will assess whether UKSBAS can develop into a full operational capability to support safety-critical applications
Artist’s impression of an Inmarsat-3 satellite. (Image: Inmarsat)
An Inmarsat-led team of companies in the United Kingdom has begun broadcasting a satellite navigation signal as part of a program to explore the creation of a sovereign national capability in resilient positioning, navigation and timing (PNT) for the aviation and maritime sectors.
The signal, being broadcast in coordination with the U.S. Federal Aviation Administration (FAA), the European Space Agency (ESA) and the European Union Space Programme Agency (EUSPA), is now stable and operational, enabling ongoing testing and validation by industry, regulators and users.
Inmarsat, a satellite communications company, alongside British partners Goonhilly Earth Station and GMV NSL, is delivering the UK Space Agency-funded tests with the European Space Agency via ESA’s Navigation Innovation and Support Program (NAVISP).
The UK Space-Based Augmentation System (UKSBAS) generates an overlay test signal to the U.S. GPS, compliant with International Civil Aviation Organization (ICAO) standards, to enable assessment of more precise, resilient and high-integrity navigation for maritime and aviation users in UK waters and airspace. It increases accuracy in positioning to a few centimeters of accuracy rather than the few meters provided by standard GPS.
This is a similar system to that already under evaluation in Australia and New Zealand, supported by Inmarsat.
Since leaving the European Union, the UK is not part of the Galileo satnav system and cannot use the European Geostationary Navigation Overlay Service (EGNOS) safety of life (SOL) services, which enable the use of GPS for airport approach and landing operations for aircraft. The UK ceased to have access to EGNOS on June 25, 2021.
By repurposing the SBAS transponder on Inmarsat’s I-3 F5 satellite in geostationary orbit at 54° west, the UKSBAS signal enables testing of this potential alternative system. Built by Inmarsat’s Athena partner Lockheed Martin and launched in 1998, I-3 F5 covers the UK as part of its Atlantic Ocean region service overlay. This makes it a suitable candidate to participate in this test and demonstrates the commitment to sustainability of Inmarsat with a satellite that has already served the equivalent of several low Earth orbit (LEO) satellite life cycles.
“The Inmarsat team is inspired by delivering solutions to new problems through technology and innovation,” said Todd McDonell, president, Global Government at Inmarsat. “Repurposing a transponder on a long-serving satellite to deliver a new capability to the UK, potentially a vital and enduring one, certainly lives up to that core Inmarsat ethos. Working with our fellow British companies at Goonhilly and GMVNSL to deliver such a capability for the country is very rewarding, and we look forward to reporting on the results.”
The tests will assess whether UKSBAS can develop into a full operational capability to support safety-critical applications such as airport approach and landing operations or navigating ships through narrow channels, especially at night and in poor weather conditions.
Goonhilly provides the signal uplink for the system from Cornwall; software from Nottingham-based GMVNSL generates the necessary navigational data.
“The UK’s thriving space sector is developing at pace, and British-led innovations like this have the potential to deliver crucial navigation services for our aviation and maritime sectors.” said Transport Minister Robert Courts. “That’s why this government is investing millions in new technologies to make our transport network even safer while boosting high-skilled job opportunities across the nation.”
UKSBAS is helping to regenerate UK strategic capabilities in this domain. The establishment of this new national platform creates the opportunity to evaluate high-integrity, resilient and precise navigation across the country, in its airspace and within surrounding waters. The project may be crucial for UK users who need accurate, high-integrity navigation capabilities to enable their operations, initially covering aviation and maritime operations but with potential extension into rail and road applications.
“Congratulations to Inmarsat, Goonhilly and GMVNSL on this impressive achievement,” said Paul Bate, CEO of the UK Space Agency. “In recent years, the UK Space Agency has invested in the development of UK expertise in positioning, navigation and timing (PNT), and the government’s commitment to strengthening PNT resilience is set out in both the National Space Strategy and Integrated Review, given its importance to our critical national infrastructure and economy. “This project is a great example of the innovation found throughout the UK space sector and demonstrates how we can work effectively with the European Space Agency to strengthen our national space capabilities.”
Satellite communications company Inmarsat is working on a United Kingdom Space Agency-funded test project with the European Space Agency to deliver the first UK-generated satellite navigation signal. The project provides a potential platform for the UK to enhance its post-Brexit positioning, navigation and timing (PNT) capabilities.
Repurposing a transponder from the Inmarsat-3 F5 satellite, the test project — known as UK Space-Based Augmentation System (UK SBAS) — will provide an overlay signal to augment the U.S. GPS, refining its accuracy from a few meters to a few centimeters.
UK PNT without EGNOS
The UK no longer has access to the European Geostationary Navigation Overlay Service (EGNOS) Safety of Life services since leaving the European Union (EU) and is not involved in the EU’s Galileo programme for similar reasons. Therefore, this new national capability supported by current and future Inmarsat satellites could offer a new option for high-integrity, precision navigation across the country, in its airspace and within surrounding waters.
UK SBAS will provide a basis to assess its future development into an operational capability to support safety-critical applications such as aircraft approaching and landing at airports or navigating ships through narrow channels, especially at night and in poor weather conditions.
Goonhilly will provide the uplink for the system from Cornwall. Software from GMV NSL, based in Nottingham, will generate the ground-based navigation signal. This is a similar system to that already in use in Australia and New Zealand, supported by Inmarsat.
The project could be crucial for UK users who need accurate, high-integrity navigation capabilities to enable their operations. It will initially cover aviation and maritime operations, but has the potential to extend into rail and other land-vehicle applications. For example, UK SBAS will comply with International Civil Aviation Organization (ICAO) standards.
“It is very welcome news to hear that UK-based companies have teamed up to deliver this ground-breaking project, with help from government funding,” said Transport Minister Trudy Harrison. “From flying planes to steering ships, reliable and precise navigation support is a crucial part of travel. This development is a significant step forward for our world-leading space sector, as we accelerate towards a net-zero transport future.”
Best satellite candidate
Artist’s impression of an Inmarsat-3 satellite. (Image: Inmarsat)
The Inmarsat-3 F5 satellite is in geosynchronous orbit at 54° west, ensuring that its signal covers the UK as part of its Atlantic Ocean region service overlay. This makes it an ideal candidate to participate in the test. The satellite was manufactured by Inmarsat’s Athena partner Lockheed Martin and launched in 1998.
“This project demonstrates British innovation at its best,” said Nick Shave, vice president of Strategic Programmes for Inmarsat Global Government. “Working with Goonhilly Earth Station and GMVNSL, supported by UK funding via the ESA Navigation Innovation and Support Programme (NAVISP), enables us to extend the long life of Inmarsat’s I-3 F5 satellite with additional new services designed two decades after launch.
“We look forward to exploring the potential for this project and the benefits it could deliver to the UK with more precise, high-integrity, resilient navigation services, whilst also exploring future capabilities on new satellites through Inmarsat’s fully funded technology roadmap,” Shave said. “This work also has the potential to be exported to other nations around the world, benefitting the UK economically as well as technologically.”
Celestia Technologies Group (CTG) is taking part in the ADACORSA project, a European initiative designed to unlock the potential of long-range and beyond-visual-line-of-sight (BVLOS) drones and give Europe a world-class drone industry.
ADACORSA — Airborne Data Collection on Resilient System Architecture — is a major collaborative project launched in May 2020 that aims to demonstrate the safety and efficiency of drones or unmanned aerial vehicles (UAVs) in extended out-of-line-of-sight operation ranges.
Specifically, it draws on European expertise in developing sensor and communication technologies for UAVs to underpin their role and reliable capability in long-range applications, including observation, analysis and transport, taking them one step further toward being integrated into conventional airspace.
ADASCORA also seeks to increase public and regulatory acceptance of modern UAV or drone technology. More than 49 specialist companies from 12 European countries are expected to contribute know-how and practical support. The project also aims to research and develop innovative components and systems for airborne observation and detection, telecommunication and data processing along the electronics value-chain.
Task Forces Established
To meet ADACORSA’s ambitious targets, task forces have been set up, one of which will be led by CTG. The company will lead the development of electronic components for reliable and fail-operational environment perception and run one project demonstrator designed to integrate unmanned aircraft systems safely into the common European airspace and ensure that they operate correctly in a multi-unmanned aircraft system environment.
CTG is a Dutch supplier and part of a pan-European company group providing innovative technology products, systems and services to space, aerospace, defense, telecommunications and scientific markets.
Galileo + EGNOS Transponder
CTG will use its expertise in on-board UAV electronics to develop a lightweight, high-performance transponder capable of sending and receiving accurate identification and location data for unmanned aerial vehicles.
Positioning will be based on Galileo, supplemented by its European Geostationary Navigation Overlay Service (EGNOS), allowing all airspace users to know the location of the vehicle and contribute to safety while supporting other on-board systems such as detect-and-avoid equipment.
The transponder will be based on conventional aviation technologies such as Mode S Interrogator and Automatic Dependent Surveillance-Broadcast (ADS-B) and will integrate new concepts including network identification, meaning the vehicle can fly safely in various scenarios. These include in locations close to airports, in drone fleet operations and within the U-Space environment. U-space is a set of European services and procedures designed to support safe, efficient and secure access to airspace for drones.
ADACORSA has received funding from the ECSEL Joint Undertaking (JU) under grant agreement No. 876019. The JU receives support from the European Union’s Horizon 2020 research and innovation program and Germany, Netherlands, Austria, Romania, France, Sweden, Cyprus, Greece, Lithuania, Portugal, Italy, Finland and Turkey.
