A rotating inertial navigation system with the rotating axis error compensation consisting of fiber optic gyros

被引：0
|
作者：
査峰 [1 ]
胡柏青 [1 ]
覃方君 [1 ]
罗银波 [1 ]
机构：
[1] College of Electricity and Information Engineering, Naval University of Engineering
来源：
Optoelectronics Letters | 2012年 / 8卷 / 02期
基金：
中国国家自然科学基金;
关键词：
IMU; A rotating inertial navigation system with the rotating axis error compensation consisting of fiber optic gyros;
D O I：
暂无
中图分类号：
TN966 [各种体制的导航系统];
学科分类号：
080401 ; 081105 ; 0825 ;
摘要：
An effective and flexible rotation and compensation scheme is designed to improve the accuracy of rotating inertial navigation system （RINS）. The accuracy of single-axial RINS is limited by the errors on the rotating axis. A novel inertial measurement unit （IMU） scheme with error compensation for the rotating axis of fiber optic gyros （FOG） RINS is presented. In the scheme, two couples of inertial sensors with similar error characteristics are mounted oppositely on the rotating axes to compensate the sensors error. Without any change for the rotation cycle, this scheme improves the system’s precision and reliability, and also offers the redundancy for the system. The results of 36 h navigation simulation prove that the accuracy of the system is improved notably compared with normal strapdown INS, besides the heading accuracy is increased by 3 times compared with single-axial RINS, and the position accuracy is improved by 1 order of magnitude.
引用
收藏
页码：146 / 149
页数：4
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