Systems and Methods for Suppressing Noise-Induced Phase Diffusion

A method of reducing a noise-induced phase diffusion for an oscillator, the method comprising:

• generating an output indicative of the oscillations of an oscillator;
• providing the output to a first drive signal generator,
• generating a first drive signal at the first drive signal generator, based at least in part on the output, a preset excitation amplitude, and a preset phase difference;
• providing the first drive signal to the oscillator;
• providing the output to an adaptive controller;
• generating, at the adaptive controller, an adaptive excitation amplitude and an adaptive phase difference, the adaptive excitation amplitude and the adaptive phase difference being generated based at least in part on the output;
• providing the adaptive excitation amplitude and the adaptive phase difference to a second drive signal generator;
• generating a second drive signal at the second drive signal generator, based at least in part on the output, the adaptive excitation amplitude, and the adaptive phase difference;
• and
• providing the second drive signal to the oscillator.

A method of reducing a noise-induced phase diffusion for an oscillator, the method comprising:

• generating, at a sensor, an output indicative of the oscillations of an oscillator;
• providing the output to a first drive signal generator;
• generating at the first drive signal generator, based on the sensor output, a first drive signal;
• providing the first drive signal to the oscillator to drive an oscillation of the oscillator;
• providing the output to an adaptive controller;
• determining, at the adaptive controller, based at least in part on the sensor output, one or more adaptive control parameters;
• providing the output and the one or more adaptive control parameters to a second drive signal generator;
• generating, at the second drive signal generator, based on the output and the one or more adaptive control parameter, a second drive signal;
• and
• providing the second drive signal to the oscillator to drive an oscillation of the oscillator.