Attitude Matching for Gimbaled Inertial Navigation System Transfer Alignment

Aiming at transfer alignment of gimbaled INS(Inertial Navigation Systems) on moving base, the paper proposes an attitude matching alignment model to calibrate the slave platform. This method is achieved by applying a Kalman filter, which based on the frame angle error equations, to estimate the fixe...

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Bibliographic Details
Published inApplied Mechanics and Materials Vol. 190-191; pp. 768 - 773
Main Authors Cao, Yuan, Ding, Zhi Jian, Cai, Hong, Yang, Hua Bo
Format Journal Article
LanguageEnglish
Published Zurich Trans Tech Publications Ltd 01.07.2012
Subjects
Gimbaled INS
Moving Base Alignment
Attitude Angle Matching
Transfer Alignment
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Summary:Aiming at transfer alignment of gimbaled INS(Inertial Navigation Systems) on moving base, the paper proposes an attitude matching alignment model to calibrate the slave platform. This method is achieved by applying a Kalman filter, which based on the frame angle error equations, to estimate the fixed misalignment angle and obtain the misalignment angle. Firstly, the frame dynamics equations are introduced and the relation between the fixed angle and misalignment angle is discussed. Secondly, the frame angular error differential equations are built up via the frame angle information from the master and the slave INS platform. Lastly, the attitude matching alignment model is designed based on Kalman filter technology. The simulation results show that the proposed method can obtain an alignment accuracy of 40", and the corresponding alignment time is 30 seconds.
Bibliography:Selected, peer reviewed papers from the 3nd International Conference on Digital Manufacturing & Automation (ICDMA 2012), August 1-2, 2012, Guangxi, China
ISBN:9783037854624
3037854626
ISSN:1660-9336
1662-7482
1662-7482
DOI:10.4028/www.scientific.net/AMM.190-191.768