Research on modulation stability and compensation method of Y waveguide in fiber optic gyroscope

2009 ◽  
Author(s):  
Xuyou Li ◽  
Zhou He ◽  
Chen Zhang ◽  
Gang Wang
Keyword(s):  
Fiber Optic ◽  
Compensation Method ◽  
Fiber Optic Gyroscope

A Novel Compensation Method for FOG Temperature Drift Based on TUKF

2014 ◽  
Vol 568-570 ◽  
pp. 405-410
Author(s):  
Yang Li ◽  
Bai Qing Hu ◽  
Feng Zha ◽  
Kai Long Li
Keyword(s):  
Fiber Optic ◽  
Unscented Kalman Filter ◽  
Network Models ◽  
Compensation Method ◽  
Mean Square ◽  
Numerical Instability ◽  
Fiber Optic Gyroscope ◽  
Elman Network ◽  
Temperature Drift ◽  
Mean Square Errors

Aiming at the problem of modeling and compensation of the fiber optic gyroscope (FOG) drift caused by temperature, a novel compensation method for FOG temperature drift based on transformed unscented Kalman filter (TUKF) is proposed. Elman network with faster convergence speed is used to modeling and TUKF algorithm is adopted to train the weights of Elman network, which effectively solves the problem of numerical instability. The results prove that the proposed method has higher precision compared with Elman network and IUKF network models. By using the TUKF algorithm, the root mean square errors (RMSE) are improved by 60%  in temperature rise period and 50.5% in fall period.

A software-compensation method to orthogonal magnetic field drift in a depolarized fiber-optic gyroscope

Optik ◽  
2014 ◽  
Vol 125 (11) ◽  
pp. 2565-2567 ◽  
Author(s):  
Dengwei Zhang ◽  
Yuxiang Zhao ◽  
Wenqing Zhou ◽  
Wenlan Fu ◽  
Cheng Liu ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Fiber Optic ◽  
Compensation Method ◽  
Fiber Optic Gyroscope ◽  
Software Compensation ◽  
Field Drift
Sign in / Sign up

Export Citation Format

Share Document