Helix Geospace awards UK grant to provide accurate and resilient GNSS solution in environments where GNSS is denied – SatNews


Helix Geospace will participate in the ‘Future flight challenge phase 3’ project with Windracers, Distributed Avionics, University of Bristol and University of Sheffield. The Innovate UK-funded project will demonstrate how large unmanned systems (with a maximum take-off weight of 450 kg) can be used to solve environmental protection problems in environments lacking GNSS, operating in swarms and using a combination of digital twinning, computer vision, and real-world flight testing.

New generation antennas for a resistant and high precision PNT

Helix develops antennas and systems that neutralize vulnerabilities and threats to Global Navigation Satellite Systems (GNSS) and Position, Navigation and Timing (PNT).

The goal of the project is to prove that a single remote operator and local security pilot can manage many unmanned devices and maintain continuous communication in environments denied by GNSS.

The Iridium HXDC1600-SAA ​​antenna family is tuned specifically for the Iridium network – 1616 to 1626 MHz. Utilizing our proprietary DielectriX™ dielectric-loaded dielectric multi-helical technology to deliver highly resilient performance in a form factor.

Commercially available antennas are susceptible to jamming and spoofing, but Dielectrix™ The antennas are integrated into a sophisticated network system capable of detecting all jamming and spoofing events, locating their precise source, and then eliminating their impact, maintaining the accuracy and resilience of GNSS PNT in environments refused to GNSS.

Collaboration with NERC British Antarctic Survey and Lancashire Fire and Rescue will provide evidence of operation and public engagement for the project. The Windracers aircraft will be fitted with British Antarctic Survey scientific research equipment and will fly in the environmentally challenging Antarctic region to collect new research data, never before obtained at this scale. The collaboration with Lancashire Fire and Rescue will help develop a solution for early detection and mitigation of fires. The Windracers aircraft will be equipped with sensors and fire mitigation technology providing an airborne system that will patrol high-risk areas. during the peak summer season.

Oliver Leister, Chief Technology Officer at Helix Geospace said, “Due to the weak and vulnerable nature of the GNSS signal, the signal is extremely susceptible to jamming and spoofing, our solution does not rely on additional sensors to assist position data, which could be compromised in various environments. Our antenna with its sophisticated array system provides a resilient solution that not only provides autonomous mitigation of PNT disturbances, but promulgates vital threat/disruption landscape information for critical applications.Our collaboration within this project will help us to gain valuable test data and will help us set a new benchmark for reliability and performance in environments without GNSS.

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