A rotation scheme for dual-unit inertial navigation system based on MEMS sensors

被引：0

作者：

Zhang, Lixiang ^{[1
]}

Wang, Lei ^{[1
]}

Liu, Zengjun ^{[1
]}

Ban, Jingxuan ^{[1
]}

机构：

[1] Beihang Univ, Sch Instrumentat Sci & Optoelect Engn, Beijing 100191, Peoples R China

来源：

2018 IEEE CSAA GUIDANCE, NAVIGATION AND CONTROL CONFERENCE (CGNCC) | 2018年

关键词：

CALIBRATION METHOD;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Inertial navigation system (INS) based on Micro-Electro-Mechanical System (MEMS) has been used in the both civil and military fields. However, large errors such as bias errors restrict them from being applied widely. Rotating modulation technique is a mature method which can modulate the constant errors of MEMS. In this way, all the devices' errors can be modulated if INS has two axes. Dual-axis INS has different forms of organizational structures which will affect the error propagation characteristics. Traditional dual-axis RINS cannot modulate all the devices' errors at the same time, in this paper, dual-unit RINS is studied and an improved rotation scheme is proposed. Theoretical analysis proves that the performance of the reported scheme is better than the traditional dual-axis RINS. Simulation results based on Matlab show that the performance of the dual-unit RINS with proposed rotation scheme is much better than the traditional dual-axis RINS with an eight-position scheme, whose position accuracy is better than the strap-down mode.What is more, the dual-unit RINS can improve the fault-tolerant performance of the system.

引用

页数：5