scholarly journals Laser frequency noise induced error in resonant fiber optic gyro due to an intermodulation effect

2015 ◽  
Vol 23 (20) ◽  
pp. 25474 ◽  
Author(s):  
Huilian Ma ◽  
Yuchao Yan ◽  
Linglan Wang ◽  
Xu Chang ◽  
Zhonghe Jin
Keyword(s):  
Fiber Optic ◽  
Laser Frequency ◽  
Frequency Noise ◽  
Fiber Optic Gyro

Laser frequency noise measurement in a resonant fiber optic gyro

Optik ◽  
2018 ◽  
Vol 175 ◽  
pp. 296-303
Author(s):  
Guhong Zhang ◽  
Zhuoqun Yu ◽  
Zhaobin Xu ◽  
Zhonghe Jin
Keyword(s):  
Fiber Optic ◽  
Laser Frequency ◽  
Noise Measurement ◽  
Frequency Noise ◽  
Fiber Optic Gyro

Research on a Wavelet Filtering Method of the Fiber Optic Gyroscope Based on EMD

2013 ◽  
Vol 705 ◽  
pp. 253-257
Author(s):  
Bin Zhou ◽  
Wei Wang
Keyword(s):  
Fiber Optic ◽  
Filter Method ◽  
Frequency Noise ◽  
Wavelet Filter ◽  
Fiber Optic Gyro ◽  
Fiber Optic Gyroscope ◽  
Random Drift ◽  
Mode Decomposition ◽  
Bias Instability ◽  
Emd Method

Due to the weak nonstationary characteristics of high-precision fiber optic gyro output random drift. In order to reduce the random drift, this paper proposes a new nonlinear, nonstationary filter method—the Empirical mode decomposition (EMD) method. Firstly some key technologies were discussed, and then proposed a Wavelet filter method of the fiber optic gyroscope based on EMD. Using fiber optic gyro data conducted off-line simulation verification. The results indicated that Wavelet filter method based on EMD can effectively remove high frequency noise compared with the ordinary wavelet filter method, and can also effectively suppress other noise. The bias instability of Gyro output from 0.0061 ° / h reduced to 0.001 ° / h. Accuracy is improved obviously.

scholarly journals Estimation of the Laser Frequency Noise Spectrum by Continuous Dynamical Decoupling

2021 ◽  
Vol 15 (1) ◽  
Author(s):  
Manchao Zhang ◽  
Yi Xie ◽  
Jie Zhang ◽  
Weichen Wang ◽  
Chunwang Wu ◽  
...  
Keyword(s):  
Noise Spectrum ◽  
Laser Frequency ◽  
Frequency Noise ◽  
Dynamical Decoupling

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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