Authors: V. Apostolyuk
Publisher: Proc. 17-th St. Petersburg Int. Conf. on Integrated Navigation Systems, St. Petersburg, 2010, pp. 57-59
Abstract: In this paper, a novel approach to CVG dynamics analysis in demodulated signals is proposed. Generalised differential equations of different types of CVG in amplitude-phase variables are then used to produce system transfer functions that relate unknown angular rate, which becomes now an input to the system, to the amplitude and phase of secondary oscillations. Using these transfer functions, different optimal filters are derived using Wiener-Kolmogorov approach both for output added noises and stochastic disturbances. Efficiency of these filters is studied for different noise-to-signal ratios. Accuracy of derived transfer functions as well as efficiency of obtained optimal filters for CVG is demonstrated by means of numerical simulation using Simulink/Matlab, where filters are applied to realistically modelled gyroscope after synchronous demodulation of its output.
Reference: Apostolyuk V. Demodulated Dynamics and Optimal Filtering for Coriolis Vibratory Gyroscopes // 17-th St. Petersburg international conference on integrated navigation systems: proceedings. – St. Petersburg (Russia). – 2010. – P. 57-59.
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