-- SYSTEM AND METHOD FOR GYROSCOPE ZERO-RATE-OFFSET DRIFT REDUCTION THROUGH DEMODULATION PHASE ERROR CORRECTION

摘要

The circuit for processing signals from a gyroscope includes a first demodulator for generating in-phase demodulation signals and a second demodulator for generating quadrature-phase demodulation signals with reference to in-phase and quadrature-phase demodulation signals, respectively, from the gyroscope. . The circuit receives demodulated in-phase and quadrature signals from the demodulators and generates an output signal corresponding to the rotation of the gyroscope along a predetermined axis with reference to the in-phase demodulation signal and the quadrature-phase demodulation signal to generate an output signal corresponding to the quadrature-phase signal from the in-phase signal. Include a digital processor to remove part of it.