English

应用科学学报

• 信号与信息处理 • 上一篇    下一篇

光纤陀螺捷联惯导系统改进航姿算法应用

宋桂华, 赵伟, 刘建业, 祝燕华   

  1. 南京航空航天大学 导航研究中心, 江苏 南京 210016

  • 收稿日期:2008-07-22 修回日期:2008-09-18 出版日期:2008-12-10 发布日期:2008-12-10
  • 通信作者: 刘建业

Application of Improved Attitude Algorithm of Strapdown Inertial
Based on FOG

SONG Gui-hua, ZHAO Wei, LIU Jian-ye, ZHU Yan-hua   

  1. Navigation Research Center, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2008-07-22 Revised:2008-09-18 Online:2008-12-10 Published:2008-12-10
  • Contact: LIU Jian-ye

被引次数

2

摘要： 捷联惯导系统一般采用旋转矢量姿态算法来消除圆锥误差的影响，从而提高姿态解算精度. 该文针对不同精度等级的角速率输出光纤陀螺，采用适合工程实现的低阶旋转矢量姿态算法，在多种不同程度的经典圆锥运动下进行了一系列仿真测试，确定了多子样旋转矢量算法在多种典型工程环境中的最优子样数，并在高性能微型数字信号处理器(digital signal processor, DSP)导航计算机上对旋转矢量姿态算法进行了试验，得到了理想的效果.

关键词: 光纤陀螺, 旋转矢量, 多子样, 数字信号处理器

Abstract: The strap-down inertial navigation system (SINS) usually uses rotation vector attitude algorithms to eliminate the influence of coning error and increase precision of attitude calculation. This paper presents simulation results of several low order rotation vector attitude algorithms with angle rate suitable for engineering applications. An optimum algorithm is proposed to minimize drift error due to both coning motion and noise in the fiber optic gyro output signal at each level. Rotation vector attitude algorithms are tested on a high performance DSP micro navigation computer, and satisfactory results are obtained.

Key words: fiber optic gyro, rotation vector, multi-samples, DSP

中图分类号: