Modeling and analysis of fiber optic gyroscope dynamic north-finding algorithm based on Simulink

Li Hongcai; Liu Chuntong; Zhao Xiaofeng; Ma Shixin

doi:10.3788/IRLA201847.S122006

In view of the problems such as the low automation degree and low precision in the traditional fiber optic gyroscope(FOG) static north-finding method, the in-depth analysis of the FOG dynamic north-finding principle and algorithm was focused on. The simulation model of FOG dynamic north-finding algorithm with least square method by points was established based on Simulink toolbox in MATLAB, and then the turntable rotation speed and sampling frequency which affected obviously the FOG dynamic north-finding precision, were simulatedly calculated and optimally analyzed as the key consideration. The simulation and calculation results show that, in the case of adopting the proposed parameters, when the turntable rotation speed is 4.5-8.5()/s and the sampling frequency is about 50 Hz, the FOG dynamic north-finding system can reach higher precision. The simulation model and the research conclusions can provide theoretical reference for the design of FOG dynamic north-finding system. Meanwhile, it also provides reference for the theoretical research and concrete realization of the FOG dynamic north-finding system.

Modeling and analysis of fiber optic gyroscope dynamic north-finding algorithm based on Simulink

1. Rocket Force University of Engineering,Xi'an 710025,China

Received Date: 2018-02-05

Rev Recd Date: 2018-05-03

Publish Date: 2018-06-25

Key words:

Abstract: In view of the problems such as the low automation degree and low precision in the traditional fiber optic gyroscope(FOG) static north-finding method, the in-depth analysis of the FOG dynamic north-finding principle and algorithm was focused on. The simulation model of FOG dynamic north-finding algorithm with least square method by points was established based on Simulink toolbox in MATLAB, and then the turntable rotation speed and sampling frequency which affected obviously the FOG dynamic north-finding precision, were simulatedly calculated and optimally analyzed as the key consideration. The simulation and calculation results show that, in the case of adopting the proposed parameters, when the turntable rotation speed is 4.5-8.5()/s and the sampling frequency is about 50 Hz, the FOG dynamic north-finding system can reach higher precision. The simulation model and the research conclusions can provide theoretical reference for the design of FOG dynamic north-finding system. Meanwhile, it also provides reference for the theoretical research and concrete realization of the FOG dynamic north-finding system.

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Reference (15)

[1]	Liao Yanbiao, Yuan Libo, Tian Qian. The 40 years of OFG in China[J]. Acta Optica Sinica, 2018, 38(3):0328001. (in Chinese)
[2]	Oguz Celikel. Application of the vector modulation method to the north finder capability gyroscope as a directional sensor[J]. Measurement Science and Technology, 2011, 22(22):035203.
[3]	Seth W Lloyd, Fan Shanhui, Michel J F Digonnet. Experimental observation of low noise and low drift in a laser-driven fiber optic gyroscope[J]. Journal of Lightwave Technology, 2013, 31(13):2079-2085.
[4]	Liu Yubo, Gao Limin, Zhao Tianyu. The generally error analysis of FOG north-seeker[J]. Infrared and Laser Engineering, 2007, 36(9):570-573. (in Chinese)
[5]	Ma H, Yu X, Jin Z. Reduction of polarization-fluctuation induced drift in resonator fiber optic gyro by a resonator integrating in-line polarizers[J]. Optics Letters, 2012, 37(16):3342-3344.
[6]	Zhou Z, Feng L S, Liu H D. A compact, low loss and polarization insensitive fiber-optic gyroscope transceiver module configuration based on free-optic integration[J]. Optik, 2011, 122(19):1689-1691.
[7]	Yu X, Ma H, Jin Z. Improving thermal stability of a resonator fiber optic gyro employing a polarizing resonator[J]. Optics Express, 2013, 21(1):358-369.
[8]	Jin Z, Zhang G, Mao H, et al. Resonator micro optic gyro with double phase modulation technique using an FPGA-based digital processor[J]. Optics Communications, 2012, 285(5):645-649.
[9]	Zhang Chunxi, Wang Lu, Gao Shuang, et al. Dynamic Allan variance analysis for stochastic errors of fiber optic gyroscope[J]. Infrared and Laser Engineering, 2014, 43(9):3081-3088.
[10]	Wang Lihui, Cao Min, Liu Qingchuan, et al. Mathematical models of light waves in Brillouin-scattering fiber-optic gyroscope resonator[J]. Optik, 2015, 126(21):2937-2940.
[11]	Wang Zhiqian, Zhao Jiyin, Xie Mujun. Design and accuracy analysis for a fast high precision independence north-seeking[J]. Acta Armamentarii, 2008, 29(2):164-168. (in Chinese)
[12]	Zhou Z, Tan Z, Wang X, et al. Experimental analysis of the dynamic north-finding method based on a fiber optic gyroscope[J]. Applied Optics, 2017, 56(23):6504.
[13]	Guo Xiqing, Huang Lei, Liu Wei. High precision north determining scheme based on FOG bias stability[J]. Journal of Chinese Inertial Technonlogy, 2009, 17(3):258-260. (in Chinese)
[14]	Jiang Qingxian, Chen Xiaobi, Ma Xiaohui, et al. North seeker using single axis FOG[J]. Journal of Chinese Inertial Technonlogy, 2010, 18(2):165-169. (in Chinese)
[15]	Wang Lifen, Xie Ying, Yang Gongliu, et al. Error analysis of the strap-down north-finder based on the fiber optic gyroscope[J]. Opto-Electronic Engineering, 2011, 38(5):46-51. (in Chinese)

Modeling and analysis of fiber optic gyroscope dynamic north-finding algorithm based on Simulink

doi: 10.3788/IRLA201847.S122006

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