Identification of Multi-Faults in GNSS Signals using RSIVIA under Dual Constellation

This publication presents the development of integrity monitoring and fault detection exclusion (FDE) pseudorange measurements, which are used to aid a tightly-coupled navigation filter. filter is based on an inertial measurement unit (IMU) aided by signals global satellite system (GNSS). Particularly, GNSS include positioning (GPS) Galileo. By using signals, systems suffer from signal interferences resulting in large errors. Further, higher number satellites with dual-constellation increases possibility that observations contain multiple faults. In order ensure accuracy solution, it crucial provide sufficient fault-free measurements for For this purpose, new hybrid strategy applied, combining conventional receiver autonomous (RAIM) innovative robust set inversion via interval analysis (RSIVIA). To further improve performance, as well computational efficiency algorithm, estimated velocity its variance reduce size RSIVIA initial box. The designed approach evaluated recorded data extensive real-world campaign, has been carried out GATE Berchtesgaden, Germany. GATE, up six Galileo orbit can be simulated. simulated manipulated faulty such identification (FDI) capability validated. results show able identify generated observables correctly solution. Compared traditional RSIVIA, provides more timely efficient.