A Fast and High-Accuracy Compass Alignment Method to SINS with Azimuth Axis Rotation
Joint Authors
Xu, Xiaosu
Liu, Xixiang
Liu, Yiting
Wang, Lihui
Source
Mathematical Problems in Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-03-07
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Azimuth axis rotating modulation was introduced to improve the alignment accuracy of strapdown inertial navigation system (SINS) through compass algorithm, in which the limit accuracy was determined by equivalent sensor errors in the eastern and northern direction.
In this modulation, horizontal sensor errors were modulated into zero mean periodic variables.
Furthermore, two methods were introduced to ensure alignment accuracy and speed: (1) shortened rotating cycle and redesigned compass parameters were selected to eliminate or ease the amplification to low-frequency senor error inputs in compass loop caused by rotation and (2) a data repeated calculation method was designed to shorten prolonged alignment time caused by the above redesigned parameters.
Based on a certain SINS, turntable test proves that alignment accuracy and time were significantly improved and slightly shortened in comparison with the classical compass alignment.
American Psychological Association (APA)
Liu, Xixiang& Xu, Xiaosu& Liu, Yiting& Wang, Lihui. 2013. A Fast and High-Accuracy Compass Alignment Method to SINS with Azimuth Axis Rotation. Mathematical Problems in Engineering،Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-1009701
Modern Language Association (MLA)
Liu, Xixiang…[et al.]. A Fast and High-Accuracy Compass Alignment Method to SINS with Azimuth Axis Rotation. Mathematical Problems in Engineering No. 2013 (2013), pp.1-12.
https://search.emarefa.net/detail/BIM-1009701
American Medical Association (AMA)
Liu, Xixiang& Xu, Xiaosu& Liu, Yiting& Wang, Lihui. A Fast and High-Accuracy Compass Alignment Method to SINS with Azimuth Axis Rotation. Mathematical Problems in Engineering. 2013. Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-1009701
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1009701