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http://dx.doi.org/10.12673/jant.2019.23.4.289

Design for Back-up of Ship's Navigation System using UAV in Radio Frequency Interference Environment  

Park, Sul Gee (Korea Reserach Institute of Ships and Ocean Engineering)
Son, Pyo-Woong (Korea Reserach Institute of Ships and Ocean Engineering)
Abstract
Maritime back-up navigation system in port approach requires a horizontal accuracy of 10 meters in IALA (International Association of Lighthouse Authorities) recommendations. eLoran which is a best back-up navigation system that satisfies accuracy requirement has poor navigation performance depending signal environments. Especially, noise caused by multipath and electronic devices around eLoran antenna affects navigation performance. In this paper, Ship based Navigation Back-up system using UAV on Interference is designed to satisfy horizontal accuracy requirement. To improve the eLoran signal environment, UAVs are equipped with camera, IMU sensor and eLoran antenna and receivers. This proposed system is designed to receive eLoran signal through UAV-based receiver and control UAV's position and attitude within Landmark around area. The ship-based positioning using eLoran signal, vision and attitude information received from UAV satisfy resilient and robust navigation requirements.
Keywords
UAV; eLoran; Vision; Backup navigation; Positioning system;
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