Improved precision of strapdown inertial navigation system brought by dual-axis continuous rotation of inertial measurement unit

被引：11
|
作者：
Li, An [1 ]
Qin, Fang-jun [2 ]
Chang, Guo-bin [2 ]
Li, Hong-wu [3 ]
机构：
[1] Naval Univ Engn, Off R&D, Wuhan, Peoples R China
[2] Naval Univ Engn, Dept Nav Engn, Wuhan, Peoples R China
[3] Peoples Liberat Army, Tianjin, Peoples R China
来源：
2010 2ND INTERNATIONAL ASIA CONFERENCE ON INFORMATICS IN CONTROL, AUTOMATION AND ROBOTICS (CAR 2010), VOL 1 | 2010年
关键词：
strapdown inertial navigation system; systemic rotation autocompensation technique; precision; error; simulation;
D O I：
10.1109/CAR.2010.5456846
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
When systemic rotation autocompensation technique is implemented in inertial navigation system (INS), inertial measurement unit (IMU) undergoes intentionally devised mechanical motions. This technique is one of the strategies of improving the system precision performance at the system level. A dual-axis continuous rotation scheme is introduced, and system error equation is derived. The behaviors of different errors are analyzed. It is concluded that the whole error of INS is attenuated effectively. The error model of the dual-axis continuous rotation INS is designed on digital computer, and the theoretical conclusion is validated.
引用
收藏
页码：284 / 287
页数：4
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