title: Multiple-Point Temperature Gradient Algorithm for Ring Laser Gyroscope Bias Compensation.
abstract: To further improve ring laser gyroscope (RLG) bias stability, a multiple-point temperature gradient algorithm is proposed for RLG bias compensation in this paper. Based on the multiple-point temperature measurement system, a complete thermo-image of the RLG block is developed. Combined with the multiple-point temperature gradients between different points of the RLG block, the particle swarm optimization algorithm is used to tune the support vector machine (SVM) parameters, and an optimized design for selecting the thermometer locations is also discussed. The experimental results validate the superiority of the introduced method and enhance the precision and generalizability in the RLG bias compensation model.
authors.affiliation: College of Opto-electrics Science and Engineering, National University of Defense Technology, Changsha 410073, China. lg_163@163.com.
authors.forename: Geng
authors.initials: G
authors.lastname: Li
authors.affiliation: College of Opto-electrics Science and Engineering, National University of Defense Technology, Changsha 410073, China. zhangpengfei0309@163.com.
authors.forename: Pengfei
authors.initials: P
authors.lastname: Zhang
authors.affiliation: College of Opto-electrics Science and Engineering, National University of Defense Technology, Changsha 410073, China. nudtweiguo@163.com.
authors.forename: Guo
authors.initials: G
authors.lastname: Wei
authors.affiliation: College of Opto-electrics Science and Engineering, National University of Defense Technology, Changsha 410073, China. xyp99999@139.com.
authors.forename: Yuanping
authors.initials: Y
authors.lastname: Xie
authors.affiliation: College of Opto-electrics Science and Engineering, National University of Defense Technology, Changsha 410073, China. wind0909@163.com.
authors.forename: Xudong
authors.initials: X
authors.lastname: Yu
authors.affiliation: College of Opto-electrics Science and Engineering, National University of Defense Technology, Changsha 410073, China. lg_nudt@nudt.edu.cn.
authors.forename: Xingwu
authors.initials: X
authors.lastname: Long
keywords: error compensation; gradient methods; particle swarm optimization; ring laser gyroscope; support vector machine; temperature measurement; temperature sensors