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Self-calibration method based on navigation in high-precision inertial navigation system with fiber optic gyro

机译：高精度陀螺光纤惯性导航系统中基于导航的自校准方法

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摘要

A rotary inertial navigation system requires higher calibration accuracy of some error parameters owing to rotation. Conventional multiposition and rotation calibration methods are limited, for they do not consider sensors' actual operating condition. In order to achieve these parameters' values as closely as possible to their true values in application, their influence on navigation is analyzed, and a relevant new calibration method based on a system's velocity output during navigation is designed for the vital error parameters, including inertial sensors' installation errors and the scale factor error of fiber optic gyro. Most importantly, this approach requires no additional devices compared to the conventional method and costs merely several minutes. Experimental results from a real dual-axis rotary fiber optic gyro inertial navigation system demonstrate the practicability and higher precision of the suggested approach.
机译：旋转惯性导航系统由于旋转而需要更高的某些误差参数的校准精度。常规的多位置和旋转校准方法受到限制，因为它们没有考虑传感器的实际工作条件。为了使这些参数的值在实际应用中尽可能接近其真实值，分析了它们对导航的影响，并针对包括惯性在内的重要误差参数设计了基于新的导航速度的相关校准方法传感器的安装误差和光纤陀螺的比例因子误差。最重要的是，与传统方法相比，该方法不需要其他设备，并且仅花费几分钟。实际的双轴旋转光纤陀螺惯性导航系统的实验结果证明了该方法的实用性和较高的精度。

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  • 来源
    《Optical engineering》 |2014年第6期|064103.1-064103.8|共8页
  • 作者

    Lei Wang; Wei Wang; Qian Zhang; Pengyu Gao;

  • 作者单位

    Beihang University, School of Instrumentation Science and Opto-electronics Engineering, #37 Xueyuan Road,Haidian District, Beijing, 100191 China;

    Beihang University, School of Instrumentation Science and Opto-electronics Engineering, #37 Xueyuan Road,Haidian District, Beijing, 100191 China;

    Beihang University, School of Instrumentation Science and Opto-electronics Engineering, #37 Xueyuan Road,Haidian District, Beijing, 100191 China;

    Beihang University, School of Instrumentation Science and Opto-electronics Engineering, #37 Xueyuan Road,Haidian District, Beijing, 100191 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    self-calibration method; fiber optic gyro; rotary inertial navigation system;

    机译：自校准方法光纤陀螺仪旋转惯性导航系统;

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