Satellite fault detection and exclusion (FDE) is an important guarantee for Global Navigation Satellite System (GNSS) to provide standard services. With the great investment of GNSS construction in many countries, multi-constellation positioning needs higher multi-fault detection performance of Receiver Autonomous Integrity Monitoring (RAIM) algorithm. In this paper, an improved RAIM algorithm with decoupling parity vectors (DPV) is proposed for multi-satellite FDE. By means of decoupling of traditional parity vector, multiple fault observations are isolated at one time. To eliminate the interference of large faults and multiple faults, positioning with fault-free satellite set by iterative detection is adopted. The simulations show that the fault test rate of the algorithm in this paper is more than 99%. The 99% corresponds to faults which is less than 8 fault observations with more than 11 × σ bias (1σ = 10.5 m). The experiment results proved that DPV is effective in multiple faults scenario.
An Improved RAIM Algorithm for Multiple Satellite Faults Detection and Exclusion
Lect. Notes Electrical Eng.
2021-10-30
13 pages
Article/Chapter (Book)
Electronic Resource
English
An Improved RAIM Algorithm for Multiple Satellite Faults Detection and Exclusion
British Library Conference Proceedings | 2022
|A new Bayesian RAIM for Multiple Faults Detection and Exclusion in GNSS
Online Contents | 2015
|Online Contents | 2006
|British Library Online Contents | 2006
|