Alignment method of rotating SINS with swinging base

被引：2
|
作者：
Chang Z. [1 ]
Zhang Z. [1 ]
Zhou Z. [1 ]
Chen H. [2 ]
Zhao J. [1 ]
机构：
[1] College of Missile Engineering, Rocket Force University of Engineering, Xi'an
[2] Institute of Systems Engineering, Rocket Force Research Institute, Beijing
来源：
Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics | 2019年 / 41卷 / 09期
关键词：
Inertial coordination; Initial alignment; Rotation modulation; Strapdown inertial navigation system (SINS);
D O I：
10.3969/j.issn.1001-506X.2019.09.23
中图分类号：
学科分类号：
摘要：
In order to improve the robustness and precision of initial alignment of strapdown inertial navigation system (SINS) for land vehicles with swinging base, an initial alignment method composed of inertial coordination multi-vector coarse alignment and optimal estimation fine alignment with rotation modulation is researched. Theory of inertial coordination alignment is stated, and difference between double-vector alignment and multi-vector alignment is analyzed. The model of optimal estimation fine alignment is established, and error suppression theory of SINS alignment with rotation modulation is researched. It is verified by simulation experiments that inertial coordination alignment can overcome effect of swing, but is influenced by vibration. Multi-vector alignment uses more information of measured vectors and gets more precise alignment results than double-vectors alignment. Rotation modulation inhibits error of horizontal inertial devices and achieves better precision than single position alignment. © 2019, Editorial Office of Systems Engineering and Electronics. All right reserved.
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页码：2087 / 2091
页数：4
相关论文
共 12 条
  • [1] Zhou S.L., Wu X.Z., Xu H.G., Et al., New rapid two-position alignment method of SINS, Journal of Chinese Inertial Technology, 20, 5, pp. 525-529, (2012)
  • [2] Zhao X.W., Sun Q., Cheng H.Y., Error analysis for initial alignment of single-axis rotating SINS, Missiles and Space Vehicles, 4, pp. 58-59, (2014)
  • [3] Yan G.M., Qin Y.Y., Wei Y.X., Et al., New initial alignment algorithm for SINS on moving base, Systems Engineering and Electronics, 31, 3, pp. 634-637, (2009)
  • [4] Yan G.M., Weng J., Bai L., Et al., Initial in-movement alignment and position determination based on inertial reference frame, Systems Engineering and Electronics, 33, 3, pp. 618-623, (2011)
  • [5] Wu M.P., Wu Y.X., Hu X.P., Et al., Optimization-based alignment for inertial navigation systems: theory and algorithm, Aerospace Science and Technology, 15, 1, pp. 1-17, (2011)
  • [6] Guo Y.S., Fu M.Y., Deng Z.H., Et al., Application of quaternion estimator algorithm dedicated on alignment of swaying and moving carrier, Journal of Chinese Inertial Technology, 25, 2, pp. 182-185, (2017)
  • [7] Mei C.B., Qin Y.Y., You J.C., Nonlinear measurement based SINS inertial alignment algorithm under large misalignment angle, Journal of Astronautics, 37, 3, pp. 291-297, (2016)
  • [8] Ali J., Mirza M.R.U.B., Initial orientation of inertial navigation system realized through nonlinear modeling and filtering, Measurement, 44, 5, pp. 793-801, (2011)
  • [9] Sun F., Sun W., Coarse alignment of SINS based on IMU single-axial rotation, Systems Engineering and Electronics, 32, 6, pp. 1272-1278, (2010)
  • [10] Chen J.X., Cheng X.H., Li J., Rapid alignment algorithm for rotary INS in inertial frame, Journal of Chinese Inertial Technology, 18, 4, pp. 396-400, (2010)
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