Chinese Journal of Ship Research, Volume. 17, Issue 5, 301(2022)

Development and prospects of initial alignment method for strap-down inertial navigation system

Li LUO1, Yulong HUANG2, Lubin CHANG3, and Yonggang ZHANG2
Author Affiliations
  • 1School of Electronic Information and Electrical Engineering, Chengdu University, Chengdu 610106, China
  • 2College of Intelligent Systems Science and Engineering, Harbin Engineering University, Harbin 150001, China
  • 3College of Electrical Engineering, Naval University of Engineering, Wuhan 430033, China
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    Figures & Tables(4)
    [in Chinese]
    [in Chinese]
    • Table 1. Summary of typical coarse alignment methods for SINS

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      Table 1. Summary of typical coarse alignment methods for SINS

      方法名称适用条件优缺点
      解析式粗对准方法[15]静基座对准速度快,易受到随机误差和运动干扰
      惯性系粗对准方法[19, 24]静基座、晃动基座、匀速直线运动计算量小,对准速度快,抗干扰能力弱
      OBA方法[25-27, 29-30]静基座、运动基座对准速度快,受观测矢量构造精度影响
    • Table 2. Maneuvering conditions that ensure the states are observable in fine alignment process

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      Table 2. Maneuvering conditions that ensure the states are observable in fine alignment process

      系统模型状态可观测性可观测所需的机动
      静基座精对准系统模型[72]位置误差独立可观测与机动状态无关
      速度误差独立可观测与机动状态无关
      姿态误差、陀螺漂移、加速度计零偏非独立可观测两段不共线的转向运动
      SINS/GNSS组合导航系统模型[70]位置误差、速度误差非独立可观测一段姿态保持不变的运动
      姿态误差、陀螺漂移、加速度计零偏、杆臂非独立可观测两段不共线的变加速运动,两段不共线的转向运动
      SINS/DVL组合导航系统模型[73]位置误差不可观测与机动状态无关
      姿态误差、速度误差、陀螺漂移、加速度计零偏、安装误差角非独立可观测不共线的变加速运动,不共线的转向运动
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    Li LUO, Yulong HUANG, Lubin CHANG, Yonggang ZHANG. Development and prospects of initial alignment method for strap-down inertial navigation system[J]. Chinese Journal of Ship Research, 2022, 17(5): 301

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    Paper Information

    Category: Weapon, Electronic and Information System

    Received: Apr. 29, 2022

    Accepted: --

    Published Online: Mar. 26, 2025

    The Author Email:

    DOI:10.19693/j.issn.1673-3185.02884

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