NDLI: Four-position drift measurement of SINS based on single-axis rotation

Content Provider	IEEE Xplore Digital Library
Author	Feng Sun Jianzhong Xia Yueyang Ben Xin Zhang
Copyright Year	2012
Description	Author affiliation: College of Automation, Harbin Engineering University, Heilongjiang Province, China (Feng Sun; Jianzhong Xia; Yueyang Ben; Xin Zhang)
Abstract	Navigation accuracy of SINS steps down gradually with the passage of time, and the gyro drift and accelerometer bias are the primary elements that result in the decline of navigation accuracy. With the emergence of rotating modulation technique, a four-position drift measurement of SINS based on single-axis rotation in static or mooring conditions is proposed. Gyrocompass alignment is conducted as an auxiliary tool and the misalignment angles are related to gyro drift as well as accelerometer bias after alignment, and then the conversion relationship between the attitude error and misalignment angles is derived. Attitude error can be obtained with the transposition of rotating mechanism and the results of gyrocompass alignment. The sensor drift are calculated with the equations which established by the relationships between misalignment angles and inertial sensor drift. Finally, both the simulation and turntable experiments validate its effectiveness. The results show that the gyro drift and accelerometer bias can be accurately calculated, and the accuracy is better than 90%. Position error can be reduced by nearly 50% after the inertial sensor bias were compensated.
Starting Page	818
Ending Page	823
File Size	1145697
Page Count	6
File Format	PDF
ISBN	9781467303859
ISSN	21533598
e-ISBN	9781467303873
DOI	10.1109/PLANS.2012.6236961
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-04-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Navigation Accuracy accelerometer bias SINS single-axis rotation gyrocompass alignment gyro drift
Content Type	Text
Resource Type	Article

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