Output details
14 - Civil and Construction Engineering
Imperial College London
A Regional Space Segment Health Monitor for Local GPS Integrity Monitoring
Paper presents world’s first cost-effective civil system (GAARDIAN, from £2.2M TSB/EPSRC project, charles.curry@chronos.co.uk) to protect GNSS users from effects of interference (intentional/unintentional). System of single or network of probes communicate with central server; detect localised events supported by existing regional network(s) to isolate space-segment anomalies. Paper details monitor design-methodology, algorithms, performance. Maximises early detection of relevant failures (including slow ramp-like errors: <0.1m/s); minimises false-alerts; uses flexible automatic thresholds; immune to cycle-slips. Follow-on research project Sentinel (TSB/EPSRC) extended GAARDIAN to realise interference identification. Presented as keynote lecture (GNSS Vulnerability Conference Croatia, 2013); invited lectures (UN GNSS Workshop, 2013; ICT-KTN/RIN Workshop, 2014).
