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Unified approach to ultra-tightly-coupled GPS/INS integrated navigation system

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4 Author(s)
Hwang, D.H. ; Dept. of Electron. Eng., Chungnam Nat. Univ., Daejeon, South Korea ; Lim, D.W. ; Cho, S.L. ; Lee, S.J.

A unified approach to the ultra-tightly coupled GPS/INS Integrated navigation system is proposed. It is shown that other methods of ultra-tightly coupled GPS/INS integrated navigation systems are included in the proposed framework, and some implementation issues are discussed. In order to show the validity of the proposed approach, position accuracy and anti-jamming capabilities of three methods of ultra-tightly-coupled GPS/INS integration system, included in the proposed framework, were compared. The comparisons were carried out through computer simulations and post-processing of data from a GNSS hardware simulator. The results show that the proposed approach works well and gives accurate navigation output with anti-jamming capability.

Published in:

Aerospace and Electronic Systems Magazine, IEEE  (Volume:26 ,  Issue: 3 )