Abstract
The paper describes the sources of fundamental noises in FOG measurement signal. Methods of excess relative intensity noise (RIN) compensation are considered. Technique improving the compensation method using division of signals from two photodetectors for noise suppression is proposed and implemented. Functional simulation is conducted, which estimates the limiting theoretical value of noise suppression by the selected compensation method with the photodetector power of min 10 µW. Test results for FOG experimental prototype are presented. Allan variance plots for the cases with and without compensation are constructed.
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References
Morkel, P.R., Laming, R.I., and Payne, D.N., Noise characteristics of high-power doped-fibre superluminescent sources, Electron. Lett., 1990, no. 26, pp. 96–98.
Bløtekjer, K., Fundamental noise sources which limit the ultimate resolution, SPIE, 1998, no. 3555, pp. 1–12.
Burns, W.K., Moeller, R.P., Dandridge, A., Excess noise in fiber gyroscope, SPIE, 1990, no. 1367, pp. 87–92.
Standjord, L.K. et al., System for suppression of relative intensity noise in a fiber optic gyroscope, US6204921 B1, 2001.
Burns, W.K. and Moeller, R.P., Noise effects in high sensitivity fiber optic gyros, SPIE, 1996, no. 2837, pp. 381–387.
Bennett, S.M., Apparatus and method for electronic RIN reduction in fiber-optic sensors, US6370289 B1, 2002.
Guattari, F., Chouvin, S., Moluçon, C., and Lefèvre, H., A simple optical technique to compensate for excess RIN in a fiber-optic gyroscope, Proceedings of Inertial Sensors and Systems Symposium (ISS), Karlsruhe, Germany, 2014, pp. 10.1–10.14.
Aleinik, A.S., Studying and enhancing the accuracy characteristics of fiber-optic gyro, Cand. Sci. (Tech.) Dissertation, 05.11.01, St. Petersburg, 2012.
Meshkovskii, I.K. et al., Fiber-optic gyro, Invention 2444704, October 26, 2010.
Siraya, T.N., Allan variance as the estimate of measurement error, Giroskopiya i Navigatsiya, 2010, no. 2(69), pp. 29–36.
Kucherkov, S.G., Lychev, D.I., Skalon, A.I., and Chertkov, L.A., Using Allan variance in studying the characteristics of MEMS gyro, Giroskopiya i Navigatsiya, 2003, no. 2, pp. 98–104.
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Original Russian Text © A.S. Aleinik, I.G. Deineka, M.A. Smolovik, S.T. Neforosnyi, A.V. Rupasov, 2016, published in Giroskopiya i Navigatsiya, 2016, No. 2, pp. 20–32.
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Aleinik, A.S., Deineka, I.G., Smolovik, M.A. et al. Compensation of excess RIN in fiber-optic gyro. Gyroscopy Navig. 7, 214–222 (2016). https://doi.org/10.1134/S2075108716030020
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DOI: https://doi.org/10.1134/S2075108716030020