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Satnav check on distant island lab

October 18, 2023
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Satnav check on distant island lab
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ESA’s navigation testbed car participated in a marketing campaign organised by Norwegian governmental authorities to evaluate the impression of jamming and spoofing on satnav techniques and check modern applied sciences for detection and mitigation.

Satellite tv for pc navigation has develop into indispensable in our every day lives and is utilized in a myriad of functions, from guiding plane and driverless vehicles to monitoring water provides and responding to emergencies. However satnav techniques are doubtlessly susceptible to jamming and spoofing as their sign energy on the bottom is weak and most of their specs are publicly obtainable. 

From 18 to 22 September, a staff from ESA joined one of many world’s largest jamming testing campaigns, Norway’s Jammertest, along with dozens of members from governmental companies, business and academia. An ESA telecommunications and navigation testbed car often based mostly at ESTEC, in Noordwijk, the Netherlands, was pushed to Norway for its first mission past Dutch borders.

The jamming testing marketing campaign was organised by the Norwegian Communications Authority, the Norwegian Defence Analysis Institution, the Norwegian Public Roads Administration and Norwegian Metrology Service and backed by the Norwegian Area Company. The island of Andøya, a distant space within the north of Norway, was became a brief out of doors laboratory the place the organisers interfered with the International Navigation Satellite tv for pc System (GNSS) sign in a managed setting.

ESA’s navigation testbed car

ESA’s testbed car had been upgraded for this journey: it was geared up with quite a lot of satnav receivers, antennas that ranged from essentially the most subtle to mass market grade, interference monitoring tools, antijamming antennas and different interference mitigation techniques, and an inertial navigation system that served because the ‘supply of fact’, an impartial relative positioning reference to check readings from the receivers to the precise place of the car. Along with this, the van additionally carried an digital assist system and particular batteries to energy its devices, in addition to loads of radiofrequency tools and battery back-ups.

The tools allowed ESTEC navigation engineers to check the efficiency of satnav techniques and  their resilience in opposition to jamming, but in addition spoofing – the sending of pretend alerts to mislead customers about their location – in addition to ‘meaconing’, the place alerts are intercepted and rebroadcast in a deceptive manner. The staff evaluated the capabilities of monitoring and mitigation techniques too.

City of Bleik, Andøya

The testing website was already a difficult location for satnav techniques: the excessive latitude implies that fewer satellites are seen within the native sky in comparison with additional south, and potential ionospheric exercise linked to the northern latitudes may also intrude with alerts.

Experimenting with European innovation

Pedestrian satnav testing tools

Among the many tools that was examined had been gadgets developed within the framework of ESA’s Navigation Innovation and Help Programme (NAVISP), that focuses on devising novel positioning, navigation and timing applied sciences and companies to spice up Member State industrial competitiveness and innovation.

The staff deployed a conveyable compact Radio Frequency Interference (RFI) detection system developed by SINTEF as a part of the venture ARFIDAAS: Superior RFI Detection, Alerting and Evaluation System. This machine can report, analyse and classify interfering alerts as quickly as they’re detected. ARFIDAAS was used to scan the electromagnetic setting earlier than the beginning of every testing session to detect sign interferences unrelated to the marketing campaign and derive an interference-free baseline.

The ESA staff additionally examined a NAVISP-funded demonstrator receiver developed by FocalPoint. This machine makes use of their patented expertise Supercorrelation, which improves GNSS accuracy, sensitivity and integrity, rising resilience to jamming assaults in addition to permitting sky scanning and detecting spoofed alerts.

NAVISP Trade Days, going down on 7 and eight November at ESTEC, will function two displays about Jammertest the place members will have the ability to study extra concerning the occasion and the staff’s expertise in Andøya, together with how they overcame challenges resembling winds of as much as 100 km/h and a flock of untamed sheep interrupting a convoy mid-test.

Galileo holds robust

ESA staff at Jammertest 2023

The Galileo system undergoes intensive testing in managed indoor laboratory environments with using simulation tools. Out of doors testing campaigns like Jammertest present a singular alternative for ESA, because the Galileo System Design Authority, to enhance lab exams in actual out of doors environments and feed the continual enchancment cycle that retains the system protected in opposition to vulnerabilities.

“With this check we’re closing the loop: we’ve got been in a position to check the efficiency of various GNSS receivers and we are able to now present suggestions to ESA’s Galileo system design staff” says Radio Navigation Engineer Xurxo Otero Villamide.

5 days of testing produced terabytes of knowledge that had been recorded and saved. Engineers will now have the ability to replay the outcomes and examine them at ESTEC. Floor and Person Phase Engineer Luciano Musumeci provides: “The first marketing campaign goal was to gather an in depth database for future exploitation, to assist inside R&D actions for instance. This has been efficiently completed: we are able to use these knowledge for years to return.”

Jammertest 2023 members

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