Adaptive mismatch compensation for vibratory gyroscopes

Author

Fu Zhang ; Keikha, Ehsan ; Shahsavari, Behrooz ; Horowitz, Roberto

Author_Institution

Dept. of Mech. Eng., Univ. of California at Berkeley, Berkeley, CA, USA

fYear

2014

fDate

25-26 Feb. 2014

Firstpage

1

Lastpage

4

Abstract

This paper presents an online adaptive controller to compensate damping and stiffness frequency mismatches in vibratory gyroscopes. This adaptive controller is running together with the method of averaging. The adaptive controller first estimates the effective damping and stiffness frequency mismatches using least square method and then compensates these estimated mismatches in an online fashion. Simulation results show that the proposed adaptive mismatch compensation controller can eliminate the effects of damping and stiffness frequency mismatches on quadrature oscillation, precession angle oscillation and precession angle drift very effectively.

Keywords

adaptive control; compensation; damping; frequency estimation; gyroscopes; least squares approximations; sensors; vibration measurement; damping compensation; damping estimation; least square method; online adaptive mismatch compensation controller; precession angle drift; precession angle oscillation; quadrature oscillation; stiffness frequency mismatch estimation; vibratory gyroscope; Adaptive control; Damping; Equations; Frequency control; Gyroscopes; Least squares approximations; Oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Inertial Sensors and Systems (ISISS), 2014 International Symposium on

Conference_Location

Laguna Beach, CA

Type

conf

DOI

10.1109/ISISS.2014.6782514

Filename

6782514