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Opportunities

057 - Development of advanced VDES-R user technologies for alternative PNT

VDES (VHF Data Exchange System) aims at digitalising maritime communications and enable the introduction of new capabilities for a variety of maritime use cases, such as AIS and Search and Rescue. It is also being considered to support alternative PNT with a dedicated ranging capability, the so-called R-mode or VDES-R, which is currently being investigated. The initiative is supported by IALA…

056 - Advanced algorithms and techniques for resilient time provision

Market trends show a clear increase in number of timing-dependent services (including highly critical ones), with increasing demand for improved performance and capability. RF signals broadcasting is becoming increasingly dependent on GNSS for accurate timing and frequency references. 5G networks will be increasingly dependent on precise and robust timing and synchronisation. Integer timing…

055 - Attitude control of autonomous ships navigating in ports

One of the many new emerging concepts having the potential to address present and future maritime challenges is autonomous ship navigation. In particular, the concept is expected to allow for more efficient and competitive ship operations while reducing, at the same time, vessels’ environmental impact. Several activities have been initiated in the recent years with the aim to jumpstart the…

054 - Monitoring timing signals from space. A novel approach for a worldwide robust time and synchronisation capability

Many systems (including critical infrastructure) rely on GNSS receivers for synchronization purposes nowadays, for instance telecom networks, power grids and financial markets. Due to the vulnerability of GNSS to interference and spoofing, there is a growing need on alternative (non-GNSS-dependent) timing services, as shown by several investigations and initiatives on this topic (e.g. European…

053 - Real-time Big Data Processing for GNSS Integrity

Different user communities defines and adopts their specific PNT integrity concepts. The relevance of GNSS integrity is evolving and increasing to support the most sophisticated PNT solutions in different market segments. Today, a number of GNSS integrity concepts is in use (e.g. RAIM, SBAS) or under development (ARAIM). Yet, all existing integrity concepts have important limitations to protect…

052 - Robust navigation of airborne autonomous systems with carrier phase of ARNS signals

As the Unmanned Aerial Vehicle (UAV) regulatory framework continues to evolve towards autonomous flight and operations beyond visual line-of-sight (BVLOS), it drives the need for reliable navigation services to complement or act as a back-up to existing ones. Trusted PNT solutions have to be developed to help tackle the many challenges that a congested airspace brings such as the safety of…

050 - Proof of concept of hybrid 5G-NR/GNSS Positioning with ad-hoc overlay

GNSS has become the corner stone of worldwide positioning applications, and in particular for those requiring high-accuracy. The outstanding performances in open sky and very competitive performances in degraded environments of GNSS are widely acknowledged, but also the need to complement GNSS by other technologies to address specific needs in challenging environments. In this context, 5G…

049 - Cooperative Positioning and Integrity Concept in Vehicle Platooning

Vehicle platooning is a scenario in which vehicles automatically follow each other in a sequential formation known as the platoon. Autonomous Vehicle Platooning is a promising feature that could be provided by future self-driving cars, trucks and other vehicles. It involves a human driver that is either physically present or is remotely controlling the vehicle at the platoon lead. Autonomous…

046 - Combining ELF signals with GNSS for improved PNT

The need for a robust PNT to complement or back up GNSS in critical infrastructure/critical application is widely acknowledged. This translates into actions taken by stakeholders to further raise awareness (e.g. radio navigation plans in the US and Europe) and for some, pave the way towards some deployment (e.g. recent Request for Information initiated by the US Department of Transport for a…

044 - Hollow Corner Cube Retro-Reflectors In-Orbit PNT

Optical solid Corner Cube Retro-reflector (CCR) arrays are often implemented to allow laser tracking of satellites from ground. In order to achieve a measurable return signal, such arrays are typically rather large, and as conventional corner cubes are made of glass, the arrays are typically high in mass. However, in recent years, interest has grown in using hollow corner cubes for space…