GSA - European GNSS Agency

07/12/2019 | News release | Distributed by Public on 07/12/2019 02:09

Experts gather at GSA GNSS Raw Measurements Workshop

The third workshop of the GNSS Raw Measurements Task Force, held on 26 June 2019 at the European GNSS Agency (GSA) headquarters, brought around 100 experts together to share their experience and progress around the use of GNSS raw measurements for robustness and for high-accuracy applications within Android devices.

The workshop was kicked off by GSA Fiammetta Diani, who highlighted the progress made within the Task Force. In just two years the Task Force has grown from a handful of people to more than 150 members, becoming de facto the global forum on GNSS raw measurements, gathering the leading innovators in high performance for mass market applications.

The workshop continued with a presentation by GSA Martin Sunkevic who presented some of the new tools available to Task Force members, including a database of logged data and a discussion forum. This was followed by a keynote speech from Google's Frank van Diggelen, in which he reviewed Android tools featured in 2018 and highlighted new logging and analysis tools and shared GNSS Measurements API updates in 2019.

Galileo apps

The GSA's Justyna Redelkiewicz and Paolo Crosta from the European Space Agency (ESA) then presented the best practices of using raw measurements in two app competitions organised by GSA and ESA respectively.

The GSA`s MyGalileoApp competition aims at delivering apps to be used on a large scale by smartphone users. So far, the top 30 applications have been selected to advance to the next round of the competition and the winners will be announced at a ceremony on 14 November. Meanwhile, the 2nd ESA Galileo App competition recently concluded, yielding five apps that leverage not only dual-frequency, but also augmented reality, spoofing detection and advanced high accuracy algorithms and use various types of data correction streams.

The session closed with a special presentation from u-blox, introducing a low power tracking demonstration toolset, which opens the door to expanding the Task Force's scope to non-Android IoT topics in the future.
GNSS Raw Measurements for robustness

The second session at the workshop was mostly dedicated to the upcoming Open Service Navigation Message Authentication service (OS-NMA) and highlighted either already finalised products or, in case of Android Raw Measurements, a guideline on how to implement them within suitable smartphone device(s).

The first presentation, from Regulus Cyber, focused on the company`s GNSS Resiliency Report summary, highlighting the results of spoofing tests carried out both on Android and other devices. STMicroelectronics presented the already OS-NMA-compatible Teseo V chipset and SpaceTech introduced its EGNSS4CAP app, currently under development, which will utilise the OS-NMA for agri-government controls.

Sophie Damy, from the European Commission's Joint Research Centre, provided an overview of the JRC`s testing capabilities for OS-NMA-enabled receivers and Moisés Navarro Gallardo, Navigation User Receiver Testing Engineer at Airbus, showed how to find suitable smartphones capable of processing the OS-NMA data with acceptable performance levels. Finally, the GSA's Flavio Sbardellati provided an overview of upcoming R&D funding opportunities, with a particular focus on the Enhanced GNSS Receiver/User Terminal call, which aims at implementing OS-NMA and/or I/NAV improvements capability in close-to-market receivers and/or GNSS user terminals.

GNSS Raw Measurements for high accuracy applications

At the two afternoon sessions, Task Force members shared their experience and knowledge on implementing high accuracy techniques within smartphones. The performance results of RTK, DGNSS, PPP and other techniques were presented at the session, complemented by analyses of dual-frequency smartphone raw GNSS observations and additional topics such as GNSS-base heading and precise velocity estimation for pedestrian navigation.

All presentations from the workshop are available for download here.

About the GNSS Raw Measurements Task Force

Launched in June 2017 and coordinated by the European GNSS Agency (GSA), the GNSS Raw Measurements Task Force aims to share knowledge and expertise on Android raw measurements and their use, including their potential for robustness and high accuracy positioning techniques relevant to mass market applications. The Task Force includes more than 150 international GNSS experts, scientists and market players, all of whom are dedicated to promoting a wider use of these raw measurements.

More information on the Task Force, its members and their work can be found here.

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