Study on Pseudolite System for BeiDou Based on Dynamic and Independent Aircrafts Configuration

This paper presents a pseudolite system for BeiDou based on dynamic and independent aircrafts configuration. Firstly, high-altitude and long-endurance unmanned aerial vehicles and airships are needed to obtain the best configuration by analyzing GDOP. Then aiming at the pseudolites’ positioning, a new integrated scheme was proposed, where distance between two aircrafts is utilized to improve the positioning accuracy. Simulation results show that GDOP is less than 3.5 and position precision of the pseudolite is 1.2 m in the users’ area. The pseudolite system is able to provide moderate navigation service, when BeiDou position system is unavailable to users.