Title :
The mathematical model and simulation of north-finder based on rate biased RLG
Author :
Yan, Zhang ; Mingming, Jiang ; Wenqi, Wu
Author_Institution :
Coll. of Mechatron. & Autom., Nat. Univ. of Defense Technol., Changsha, China
Abstract :
In this paper, the basic principles of north-finder based on rate biased ring laser gyroscope (RLG), the mathematical model and the least square (LS) arithmetic are introduced. The measurement error of RLG (scale factor instability, bias instability, and random angle walk) and the angle measurement error of the platform are the major errors of the north-finder. Simulation analysis is performed to get their influence to the precision of the north-finder. Finally, an experiment is performed to test the mathematical model and the LS arithmetic.
Keywords :
angular measurement; gyroscopes; least squares approximations; ring lasers; RLG; angle measurement error; bias instability; least square arithmetic; mathematical model; north-finder; random angle walk; ring laser gyroscope; scale factor instability; Accuracy; Large Hadron Collider; LS; mathematical model; north-finder; rate biased RLG;
Conference_Titel :
Computer Application and System Modeling (ICCASM), 2010 International Conference on
Conference_Location :
Taiyuan
Print_ISBN :
978-1-4244-7235-2
Electronic_ISBN :
978-1-4244-7237-6
DOI :
10.1109/ICCASM.2010.5622588
