Method of variable square wave modulation to restrain excessive modulation crosstalk in FOG

Li He; Deng Xuewen; Zhu Kuibao; Deng Nianmao

doi:10.3788/irla201746.0822004

[1] Xu Wenyuan, Zhang Chunxi, Zhang Xi, et al. Theory analysis and experiment of the double-square wave modulation in FOG[J]. Opto-Electronic Engineering, 2009, 36(1): 63-67. (in Chinese)

[2] Jin Jing, Li Min, Song Ningfang, et al. Random modulation for FOG based on four-states Markov chain[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(4): 769-772. (in Chinese)

[3] Gu Hong, Zhao Qida, Yang Gongliu. Study of the over modulation technique in the fiber optic gyroscope[J]. Journal of Optoelectronics Laser, 2008, 19(8): 1035-1037. (in Chinese)

[4] Liu Jianfeng, Jiang Yong, Ding Chuanhong. The calculation of random signal of FOG based on Kalman[J]. Journal of Astronautics, 2009, 30(2): 604-605. (in Chinese)

[5] Tian Yunpeng, Yang Xiaojun, Guo Yunzeng, et al. Filtering analysis on the random noise of fiber optic gyroscope[J]. Acta Optica Sinica, 2015, 35(9): 0906006. (in Chinese)

[6] Zhang Qian, Wang Wei, Wang Lei, et al. Research on random errors of fiber optic gyro based on dynamic Allan variance and algorithm improvement[J]. Acta Optica Sinica, 2015, 35(4): 0406003. (in Chinese)

[7] Suo Xinxin, Yang Yuanhong, Yang Mingwei, et al. Relative intensity noise characteristic of broadband sources and its effect on performance of closed-loop FOG[J]. Chinese Journal of Lasers, 2014, 41(6): 0605009. (in Chinese)

[8] Zhang Guicai. Principles and Technologies of Fiber-Optic Gyroscope[M]. Beijing: National Defense Industry Press, 2008. (in Chinese)

[9] Li Lijing, Wang Ying, Yang Hui. Control of temperature dynamic characteristics of SFS light source[J]. Optics and Precision Engineering, 2014, 22(3): 539-546. (in Chinese)

[10] Liu Shiwei, Wang Jiakou, Hu Yibin, et al. Influence of square-wave modulation distortion on closed-loop fiber optic gyroscope and its elimination[J]. Infrared and Laser Engineering, 2015, 44(12): 3755-3671. (in Chinese)

[11] Han Zhengying, Gao Han, Gao Yesheng, et al. Effect of strain distribution measurement of fiber coil on FOG performance[J]. Infrared and Laser Engineering, 2014, 43(12): 4129-4130. (in Chinese)

[12] Li Changsheng, Zhang Chunxi, Song Ningfang, et al. Polariz-ation-maintaining fiber loop with double optical length and its application to fiber optic gyroscope[J]. Chinese Optic Letters, 2011, 9(2): 020604.

[13] Hao Yanling, Wang Deshuang, Chen Honggang, et al. Suppression of relative intensity noise for FOG by using signal cross-correlation[J]. Optics and Precision Engineering, 2012, 20(6): 1218-1224. (in Chinese)

[14] Wang Yandong, Yang Chunlei, Dong Wenhui. EMD filtering of fiber gyro in initial alignment of SINS[J]. Chinese Optics, 2015, 8(6): 934-935. (in Chinese)

[15] John G Mark, Daniel A Tazartes, Amado Cordova. Method and apparatus for overcoming cross-coupling in a fiber optic gyroscope employing overmodulation: United States Patent, 5682241[P]. 1997-10-28.