A Unified Modeling Approach of Stochastic Error in Fiber Optic Gyro and Application in INS Initial Alignment

2020 ◽  
Vol 20 (13) ◽  
pp. 7241-7252
Author(s):  
Songlai Han ◽  
Shilin Luo ◽  
Jiazhen Lu ◽  
Jing Dong
Keyword(s):  
Fiber Optic ◽  
Fiber Optic Gyro ◽  
Initial Alignment ◽  
Unified Modeling ◽  
Modeling Approach ◽  
Stochastic Error

Fast Compass Alignment Algorithm of FOG SINS under Sway Condition

2013 ◽  
Vol 321-324 ◽  
pp. 2171-2176 ◽  
Author(s):  
Bin Zhou ◽  
Wei Wang
Keyword(s):  
Fiber Optic ◽  
Alignment Algorithm ◽  
Test Results ◽  
Fiber Optic Gyro ◽  
Initial Alignment ◽  
Variable Parameters ◽  
Navigation Algorithm ◽  
Alignment Problem ◽  
Concrete Realization ◽  
Instrument Accuracy

Through research on initial alignment problem of fiber optic gyro SINS in the sway condition, this paper proposed a rapid compass alignment scheme with variable parameters, which can accomplish rapid initial alignment. Firstly, analysted SINS compass alignment principle, and gave a concrete realization method which has the same calculation procedure with full damping navigation algorithm. This method makes the alignment and navigation to use the same set of algorithms, and can effectively reduce algorithm complexity. Simulation and repeatedly sway test results show that the alignment algorithm is effective. The alignment precision and instrument accuracy is consistent, it can meet the requirements of the initial alignment.

The Passive Resonator Fiber Optic Gyro and Comparison to the Interferometer Fiber Gyro

1987 ◽  
Author(s):  
R. Carroll ◽  
C. D. Coccoli ◽  
D. Cardarelli ◽  
G. T. Coate
Keyword(s):  
Fiber Optic ◽  
Fiber Optic Gyro
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