北京航空航天大学学报 ›› 2013, Vol. 39 ›› Issue (9): 1203-1207.

• 论文 • 上一篇    下一篇

旋转式光纤陀螺惯导系统随机误差抑制技术

周斌1, 王巍2, 何小飞2   

  1. 1. 北京航空航天大学 仪器科学与光电工程学院, 北京 100191;
    2. 北京航天控制仪器研究所, 北京 100854
  • 收稿日期:2012-11-19 出版日期:2013-09-30 发布日期:2013-10-13
  • 作者简介:周斌(1983-),男,江西贵溪人,博士生,zhou01031189@sohu.com.
  • 基金资助:

    总装预研资助项目(51309030103)

Random error suppression technology of rotating FOG inertial navigation system

Zhou Bin1, Wang Wei2, He Xiaofei2   

  1. 1. School of Instrumentation Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
    2. Beijing Aerospace Control Instrument Research Institute, Beijing 100854, China
  • Received:2012-11-19 Online:2013-09-30 Published:2013-10-13

摘要: 采用旋转调制技术能够有效降低陀螺常值漂移和加速度计常值零偏对导航系统精度的影响,但其对陀螺随机漂移和噪声几乎没有抑制作用.惯导系统在随机干扰的作用下输出误差将发散,影响系统长时间的导航定位能力.通过对抑制随机干扰误差的阻尼技术进行研究,提出一种具有阻尼特性的旋转式光纤陀螺惯导系统,利用阻尼技术抑制随机干扰对导航系统精度的影响.从仿真结果可以看出,具有阻尼特性的单轴旋转光纤陀螺惯导系统精度提高1倍以上.当系统采用更高精度的惯性仪表时,随机误差的阻尼抑制效果将更明显.

Abstract: The impact of the gyro constant drift and accelerometer constant bias to the inertial navigation system (INS) can be reduced by rotation modulation technology, but the gyro random drift and noise can not be inhibited. The errors of INS will divergence under action of random disturbances, which affects the long-term ability to navigate. The damping technology to inhibit random error interference was concerned, and a damping rotating fiber optic gyro (FOG) inertial navigation system was presented. Using the damping technology the affect of random noise to navigation system accuracy was suppressed. Simulation results show that the single axis rotating FOG inertial navigation system precision is improved by more than one times with damping technology. When higher precision instrument is adopted, it will be more obvious for suppress effect of random error.

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