A Ground Fine Alignment of Strapdown INS under a Vibrating Base

作者:Li, Qian*; Ben, Yueyang; Zhu, Zhongjun; Yang, Jiaolong
来源:Journal of Navigation, 2013, 66(1): 49-63.
DOI:10.1017/S0373463312000367

摘要

In order to solve the problem of a strapdown Inertial Navigation System (INS) under a vibrating base, a ground fine alignment method is proposed in this paper, and it is about reconstructing the error equations of a strapdown INS. In this method, the effects aroused by the linear and angular vibration are considered as system and measurement noise; in addition, they are also regarded as the components of a system matrix. This setting avoids the effects of linear and angular vibration under a vibrating base. The results of simulation and experiment show that our method is suitable for a ground fine alignment of a strapdown INS under a vibrating base.