Demodulated dynamics and optimal noise filtering for coriolis vibratory gyroscopes

Authors

  • V. O. Apostolyuk Національний технічний університет України «КПІ», Київ, кандидат технічних наук, доцент, Ukraine

DOI:

https://doi.org/10.33577/2312-4458.8.2013.81-88

Keywords:

Coriolis vibratory gyroscope, sensitive element dynamics, micromechanical gyroscope, optimal filtering, sensor noise

Abstract

Analysis of the Coriolis vibratory gyroscopes sensitive element dynamics in terms of the amplitude-phase variables led to the proper transfer functions of such inertial sensors, where angular rate is an input. Obtained transfer functions were simplified for the several special cases and then used to derive poles, amplitude, and phase responses of CVG. Performance of the simplified transfer functions is also analyzed and compared to the accurate numerical model of the sensitive elements dynamics. Obtained transfer functions were then used to derive static (Wiener) and adaptive (Kalman) optimal filters of stochastic sensor noise for Coriolis vibratory gyroscopes.

References

Yazdi N. Micromachined Intertial Sensors / N. Yazdi, F. Ayazi, K. Najafi // Proceedings of the IEEE. – 1998. – Vol. 86, No. 8. – P. 1640-1659.

Friedland B. Theory and error analysis of vibrating-member gyroscope / B. Friedland, M. F. Hutton // IEEE Trans. on Automatic Control. – 1978. – no. 23. – P. 545-556.

Lynch D. Vibratory gyro analysis by the method of averaging / D. Lynch // Proc. 2nd St. Petersburg Conf. on Gyroscopic Technology and Navigation. – May, 1995. – P. 26-34.

Apostolyuk V. Dynamics of Micromechanical Coriolis Vibratory Gyroscopes / V. Apostolyuk, F. Tay // Sensor Letters. – 2004. – Vol. 2, no. 3-4. – P. 252-259.

Apostolyuk V. Theory and Design of Micromechanical Vibratory Gyroscopes / V. Apostolyuk // MEMS/NEMS Handbook (Ed: Cornelius T. Leondes), Springer. – 2006. – Vol.1, Chapter 6. – P. 173-195.

Leland R. Mechanical Thermal Noise in Vibrating Gyroscopes / R. Leland // Proc. of the American Control Conference. – June 25-27, 2001. – P. 3256-3261.

Clark W. Micromachined Vibratory Rate Gyroscopes / W. Clark // PhD Dissertation, U.C. Berkeley. – 1996.

Blokhin L. Statistical Dynamics of Control Systems / L. Blokhin, M. Burichenko // Kiev: NAU. – 2003.

Bar Shalom Y. Estimation with Applications to Tracking and Navigation / Bar Shalom Y. // Wiley & Sons. – 2003.

Downloads

Published

2013-05-04

How to Cite

Apostolyuk, V. O. (2013). Demodulated dynamics and optimal noise filtering for coriolis vibratory gyroscopes. Military Technical Collection, (8), 81–88. https://doi.org/10.33577/2312-4458.8.2013.81-88

Issue

Section

PRODUCTION OF MILITARY EQUIPMENT