New Aurora Borealis insights promise to improve satellite navigation

New Aurora Borealis insights promise to improve satellite navigation

Technology News |
Researchers at the University of Bath (Bath, UK) have gained new insights into the mechanisms of the Northern Lights, providing an opportunity to develop better satellite technology that can negate outages caused by this natural phenomenon.
By Rich Pell

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Earlier research has shown that the natural lights of the Northern Lights – also known as or Aurora Borealis – interfere with Global Navigation Satellite Systems (GNSS) signals which are heavily relied upon in the transport and civil aviation industries.

The presence of plasma turbulence within the Northern Lights was traditionally deemed responsible for causing GNSS inaccuracies. However, this latest research found that turbulence does not exist, suggesting new, unknown mechanisms are actually responsible for outages on GNSS signals.

This is the first time it has been shown that turbulence does not take place within the Northern Lights and this new knowledge will enable new technological solutions to overcome these outages.

The research team from the University of Bath’s Department of Electronic & Electrical Engineering in collaboration with the European Incoherent Scatter Scientific Association (EISCAT) observed the Northern Lights in Tromsø, northern Norway, where they observed and analysed the Northern Lights simultaneously using radar and a co-located GNSS receiver.

GNSS signals were used to identify how the Northern Lights interfere with GPS signals. Radar analysis provided a visual snap shot of the make-up of this spectacular phenomenon.


The researchers believe this heightened understanding of the Northern Lights will inform the creation of new types of GNSS technology which are robust against the disturbances of the Northern Lights, and help influence GNSS regulations used in industries such as civil aviation, land management, drone technology, mobile communications, transport and autonomous vehicles.

Lead researcher and Lecturer in the Department of Electronic & Electrical Engineering at the University of Bath, Dr Biagio Forte, said: “With increasing dependency upon GNSS with the planned introduction of 5G networks and autonomous vehicles which rely heavily on GNSS, the need for accurate and reliable satellite navigation systems everywhere in the world has never been more critical.

“The potential impact of inaccurate GNSS signals could be severe. Whilst outages in mobile phones may not be life threatening, unreliability in satellite navigations systems in autonomous vehicles or drones delivering payloads could result in serious harm to both humans and the environment.

“This new understanding of the mechanisms which affect GNSS outages will lead to new technology that will enable safe and reliable satellite navigation.”

This is a picture of the Northern Lights. Image courtesy of University of Bath.

For more, see “Identification of scintillation signatures on GPS signals originating from plasma structures detected with EISCAT incoherent scatter radar along the same line of sight.”

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