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兵工学报 ›› 2006, Vol. 27 ›› Issue (2): 284-287.

• 论文 • 上一篇    下一篇

捷联寻北仪方位角误差分析

徐建华,刘星挢,陈家斌   

  1. 北京理工大学信息科学技术学院,北京100081
  • 收稿日期:2005-03-21 上线日期:2014-12-25
  • 通讯作者: 徐建华

Strap-down North Finder Azimuth Error Analysis

XU Jian-hua, LIU Xing-qiao, CHEN Jia-bin   

  1. School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081,China
  • Received:2005-03-21 Online:2014-12-25
  • Contact: XU Jian-hua

摘要: 应用捷联惯导系统的基本理论研究了动力调谐陀螺寻北仪在有姿态时,由于坐标不一致性和纬度的计算误差引入的寻北误差,为全方位补偿和姿态补偿提供了理论探索。仿真和实际系统结果表明,由方位角引起的方位角误差与纬度及姿态有关。

关键词: 自动控制技术 , 寻北仪 , 姿态矩阵 , 计算地理坐标系 , 动力调谐陀螺

Abstract: The north finder error was studied using the basic theory of strap-down inertial system. It is found that when the attitude angle is nonzero, the azimuth error is partly caused by the disagreement of coordinates with latitude error. And based on this, the theoretic criteria of the azimuth and attitude compensation were partially put forward. Simulative and testing results show that the azimuth error is the function of azimuth, latitude and attitude.

Key words: automatic control tecnnique , north finder , attitude matrix , computed geographical coor-dinates , dynamically tuned gyro

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