Analysis of the Symmetry for a Rotating Strapdown Inertial Navigation System

被引：0
|
作者：
Gao, Wei [1 ]
Zhang, Ya [1 ]
Sun, Qian [1 ]
Ben, Yueyang [1 ]
机构：
[1] Harbin Engn Univ, Coll Automat, Harbin, Peoples R China
来源：
MACHINE DESIGN AND MANUFACTURING ENGINEERING | 2012年 / 566卷
关键词：
strapdown inertial navigation system; inertial measurement unit; revolution modulation; dual-axis rotating method;
D O I：
10.4028/www.scientific.net/AMR.566.703
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
It is known that the precision of the strapdown inertial navigation system is influenced by constant bias of inertial sensors. A method of self-compensation based on a rotating inertial navigation system is proposed to enhance the precision. The constant drift of gyro and accelerometers is modulated into a seasonal and zero-mean form. In the paper, the theory of the rotary modulation and the basic requirement of the rotation method are analyzed. A new dual-axis rotating method is put forward. Simulations have been done. And the results indicate that the method can clear up the constant bias of the inertial sensors quickly and effectively. The position accuracy can be greatly enhanced compared with no rotary manner.
引用
收藏
页码：703 / 706
页数：4
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