DIGITAL CANCELATION OF CLOCK JITTER INDUCED NOISE
DRIVE
January 2, 2020
A system for processing signals from a gyroscope includes at least one drive channel and at least one sense channel. The drive channel includes an analog-to-digital converter (ADC), an in-phase demodulator, at least one filter and a phase-locked loop. The sense channel includes an ADC, an in-phase demodulator, a quadrature-phase demodulator, and filters for the in-phase and quadrature-phase demodulators. The system includes a digital subtraction circuit subtract an in-phase component of the drive signal from the drive channel from an in-phase component of the rate signal from the sense channel to generate a sense axis output signal.
Discussion in the ATmosphere