Gimbals periodic error suppression based on fiber optic gyroscope

Yang Yongqing; Liang Yanbin; Li Zhiguo; Liang Dongsheng

In order to suppress the periodic angle measuring error's fluctuation on gimbals and the imaging effect of photoelectric tracking, a measuring error model and an error control algorithm were established. Firstly, the mechanism of the measurement error of angular measuring system was analyzed, and a mathematical model for the periodic error was established in this paper. Secondly, a measuring error acquisition system based on the high precision fiber optic gyroscope and Fourier was established, and a specific expression of angle measurement error model was established through seven experimental procedures. Then, the periodic system error was compensated according to the measured angle error expressions through four steps. Finally, the effectiveness of control compensation was verified by tracking imaging experiments, and the experimental results show that speed error is reduced to 0.04 ()/s, is reduced 8 times. The error meets the requirement of the imaging system less than 0.1 ()/s, and the stripe imaging effect is greatly improved.

1. Xi'an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi'an 710119,China;

2. University of Chinese Academy of Sciences,Beijing 100049,China

Received Date: 2014-10-17

Rev Recd Date: 2014-11-13

Publish Date: 2015-06-25

Key words:

Abstract: In order to suppress the periodic angle measuring error's fluctuation on gimbals and the imaging effect of photoelectric tracking, a measuring error model and an error control algorithm were established. Firstly, the mechanism of the measurement error of angular measuring system was analyzed, and a mathematical model for the periodic error was established in this paper. Secondly, a measuring error acquisition system based on the high precision fiber optic gyroscope and Fourier was established, and a specific expression of angle measurement error model was established through seven experimental procedures. Then, the periodic system error was compensated according to the measured angle error expressions through four steps. Finally, the effectiveness of control compensation was verified by tracking imaging experiments, and the experimental results show that speed error is reduced to 0.04 ()/s, is reduced 8 times. The error meets the requirement of the imaging system less than 0.1 ()/s, and the stripe imaging effect is greatly improved.

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Reference (19)

[1]	Downs James, Smith Steve, Schwickert Jim. High performance gimbal control for sell-protection weapon systems[C]//SPIE, 2008, 3365: 77-86.
[2]
[3]	Akioy, Toshihiroh, Takafumis, et a1. Japanese first optical inter-orbit communications engineering test satellite(OICETS)[C]//SPIE, 2013, 2210: 30-38.
[4]
[5]	Sun Chengming, Yuan Yan, Huang Fengzhen, et al. Modeling and simulation on infrared imaging characteristics of space target[J]. Infrared and Laser Engineering, 2012, 41(3): 2209-2215. (in Chinese) 孙成明, 袁艳, 黄锋振, 等. 空间目标红外成像特性建模与仿真[J].红外与激光工程, 2012, 41(3): 2209-2215.
[6]
[7]
[8]	Men Tao, Yang Yue, Xu Rong, et a1. Resolution of incremental photoelectric angular encoder with reference mark excursion[J]. Infrared and Laser Engineering, 2014, 43(2): 497-501. (in Chinese) 门涛, 杨悦, 徐蓉, 等. 增量式光电轴角编码器零点漂移问题解决[J]. 红外与激光工程, 2014, 43(2): 497-501.
[9]
[10]	Liu Junhui, Shan Jiayuan, Liu Yongshan. Tracking performance of gyro-stabilized seeker[J]. Infrared and Laser Engineering, 2013, 42(8): 2209-2215. (in Chinese) 刘俊辉,单家元,刘永善.动力陀螺式导引头跟踪能力分析[J].红外与激光工程, 2013, 42(8): 2209-2215.
[11]
[12]	Zhao Ming, Bai Yang, Liu Hui. et a1. Pointing error modeling and parameter calibration for seeker stabilized platform[J]. Infrared and Laser Engineering, 2013, 42(S02): 374-379. (in Chinese) 赵明, 白杨, 刘慧, 等. 导引头稳定平台指向误差建模与参数标定[J]. 红外与激光工程, 2013, 42(S02): 374-379.
[13]
[14]	Zhu Chengjun, Long Kehui. Research on the method of signal amplitude automatic compensation for photoelectric encoder. [J]. Opt Precision, 2009, 28(9): 6-12. (in Chinese) 祝成军, 龙科慧. 光电编码器信号幅值自动补偿方法的研究[J]. 光学精密工程, 2009, 28(9): 6-12.
[15]
[16]	Kong Zhiyong, Zhao Hongying, Xiong Wengzhuo. Study on techniques of increasing the accuracy and resolution for the absolute photo electricity rotary encode[J]. Opt Precision, 2001,9(3): 261-265. (in Chinese) 孔智勇, 赵红颖, 熊文卓. 采用衍射、干涉技术提高绝对式光电轴角编码器精度和分辨率[J]. 光学精密工程, 2001,9(3): 261-265.
[17]	Xiong Wenzhuo, Kong Zhiyong, Zhang Wei. Phase correction of quartering deviation of photoelectric rotary encoder [J]. Opt Precision Eng, 2007, 15(11): 1745-1748.(in Chinese) 熊文卓, 孔智勇, 张炜. 光电轴角编码器光电信号正交性偏差的相量校正方法[J]. 光学精密工程, 2007, 15(11): 1745-1748.
[18]
[19]	Geng Lihong, Cao Xuedong. The verification of accuracy and resolution for high-resolution photoelectric rotary and angle Encoders[J]. Tool Engineering, 1996, 30(9): 36-38. (in Chinese) 耿丽红, 曹学东. 高分辨力光电轴角编码器分辨力和精度的检测[J]. 工具技术, 1996, 30(9): 36-38.

Gimbals periodic error suppression based on fiber optic gyroscope

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