FIBER OPTIC GYROSCOPE WITH REDUCED NONCHLDINEARITY AT LOW ANGULAR RATES

摘要

PURPOSE: A fiber gyroscope is provided to reduce errors generating at low angular rates. CONSTITUTION: The linearity of a fiber optic gyroscope can be improved by dithering the gyroscop's feedback signal. This dithering signal is generated by a dither pattern generator. An output element by introduced by the dithering signal is removed by processing the gyroscope data over an entire cycle of the dithering signal. The dither pattern generator emits a compensation signal to further improve the linearity.