ADVANTAGES OF ECEF-FRAME BASED GLOBAL NAVIGATION MECHANIZATION FOR INS/GNSS INTEGRATED NAVIGATION SYSTEM

摘要

This paper presents a global navigation mechanization based on Earth-centered Earth-fixed (ECEF) frame, which can be applied anywhere in the world, including the polar regions. The ECEF frame is adopted as both reference and projected frame to avoid the failure of conventional mechanization in polar regions. Besides, the error equations are given for being used in the integrated navigation system. Finally, the global navigation algorithm is verified through a simulation.