NAVISP EL1-058: “Demonstration of GNSS Position Bounding Using Satellite Uplinks”

Last Updated: 21/01/2026 10:41     Created at: 15/01/2026 14:15

On 13 January 2026, a consortium led by Thales Alenia Space, with Qascom, Traxens, and Kinéis, presented the results of NAVISP-058 (LOCFIT) on secure GNSS position bounding for low-cost IoT container tracking.

Motivated by constrained devices and degraded visibility in stacked containers, the team defined service-level KPIs (15-min geolocation, alarm latency, bound size, false/missed-alarm rates) and a three-alarm scheme (tamper, navigation-performance degradation, spoofing).

A measurement-consistency approach using uplink ranging was retained: in nominal conditions UTDOA and RTT both achieved 100% availability with zero false alarms, while RTT proved more robust than UTDOA to record-and-replay and clock-bias attacks.

The project demonstrated 500 m position verification and delivered a simulation-based sandbox for further trades; it was fully funded by ESA NAVISP Element 1. The slides can be accessed here.