Multiple-Point Temperature Gradient Algorithm for Ring Laser Gyroscope Bias Compensation

Geng Li; Pengfei Zhang; Guo Wei; Yuanping Xie; Xudong Yu; Xingwu Long
December 2015
Sensors (14248220);Dec2015, Vol. 15 Issue 12, p29910
Academic Journal
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.


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