Coarse leveling of gyro-free INS

被引:11
|
作者
Vaknin E. [1 ]
Klein I. [1 ]
机构
[1] Rafael Advanced Defense Systems Ltd., Haifa
关键词
Pitch Angle; Inertial Measurement Unit; Inertial Navigation System; Gravity Vector; Config Urations;
D O I
10.1134/S2075108716020115
中图分类号
学科分类号
摘要
For a stationary system, coarse alignment is used to initially determine the orientation of the INS by utilizing the Earth gravity and rotation vectors. Yet, a gyro-free INS has only accelerometers and hence cannot measure the Earth rotation vector and thus cannot deduce its yaw angle. In this paper, we formulate the coarse-alignment procedure and derive error characteristics for a gyro-free system. In addition, a comparison between different configurations of accelerometers is being conducted. © 2016, Pleiades Publishing, Ltd.
引用
收藏
页码:145 / 151
页数:6
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