Filtering and analysis on the random drift of FOG

CORC > 西安光学精密机械研究所 > 中国科学院西安光学精密机械研究所 > 光电测量技术实验室

	Filtering and analysis on the random drift of FOG
	Tian, Yun-Peng 1,2; Yang, Xiao-Jun 1; Guo, Yun-Zeng 1; Liu, Feng 1
	2015
会议名称	applied optics and photonics, china: optical fiber sensors and applications, aopc 2015
会议日期	2015-05-05
会议地点	beijing, china
英文摘要	fiber optic gyro (fog) is an optical gyroscope which is based on the sagnac effect and uses the optical fiber coil as light propagation channel. gyro drift consists of two components: systemic drift and random drift. systemic drift can be compensated by testing and calibrating. random drift changes with time, so it becomes an important indicator to measure the precision of gyroscope, which has a great impact on the inertial navigation system. it can't be compensated by the simple method. random drift is a main error of fiber optic gyro (fog). the static output of fog is a random project and it has more random noise when as the inertial navigation sensor, which will affect the measurement accuracy. it is an efficient method to reduce the random drift and improve the accuracy by modeling and compensation from the output of fog. according to the characteristic of fiber optic gyro, the random drift model is studied. using the time series method, the constant component of the random noise original data is extracted. after stationarity and normality tests, a normal random process is acquired. based on this, the model is established using the recursive least squares, and then the model is applied to the normal kalman and adaptive kalman, finally the data is process with the filter. after experimental verification, the noise variance was reduced after filtering, and the effect is obvious. © 2015 spie.
收录类别	EI ; ISTP
产权排序	1
会议录	aopc 2015: optical fiber sensors and applications
会议录出版地	spie
语种	英语
ISSN号	0277786x
内容类型	会议论文
源URL	[http://ir.opt.ac.cn/handle/181661/27708]
专题	西安光学精密机械研究所_光电测量技术实验室
作者单位	1.Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an, China 2.University of Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Tian, Yun-Peng,Yang, Xiao-Jun,Guo, Yun-Zeng,et al. Filtering and analysis on the random drift of FOG[C]. 见:applied optics and photonics, china: optical fiber sensors and applications, aopc 2015. beijing, china. 2015-05-05.