Effects of Non-orthogonal Scheme on Error Modulation of Single-axis Rotating Strapdown INS
- 10.2991/icmmita-15.2015.248How to use a DOI?
- Non-orthogonal scheme; single-axis rotating; strapdown INS; error modulation.
To improve the accuracy of strapdown inertial navigation system(SINS), a non-orthogonal installation scheme of inertial sensors was put forward for single-axis rotating SINS in this paper. Firstly, the principle of single-axis rotation modulation technology was expounded based on the error model of inertial sensors. Then, the effects of non-orthogonal scheme upon rotating modulation were analyzed theoretically, which show that the equivalent error magnitudes vary with angles between sensitive axes of inertial sensors. Finally, the simulation was performed. Experimental results show that the velocity error reduced from 1.91m/s to 1.03m/s in north and from 1.95m/s to 1.08m/s in east, and the positioning accuracy improved from 7.32 n mile to 2.00 n mile in north and from 5.06 n mile to 1.70 n mile in east within 24h when suing the new scheme.
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Qichao Wang AU - Meiping Wu AU - Shaokun Cai AU - Changfeng Chen PY - 2015/11 DA - 2015/11 TI - Effects of Non-orthogonal Scheme on Error Modulation of Single-axis Rotating Strapdown INS BT - Proceedings of the 2015 3rd International Conference on Machinery, Materials and Information Technology Applications PB - Atlantis Press SP - 1336 EP - 1340 SN - 2352-538X UR - https://doi.org/10.2991/icmmita-15.2015.248 DO - 10.2991/icmmita-15.2015.248 ID - Wang2015/11 ER -