Optimization of frequency stabilization loop for resonator fiber optic gyro

Abstract

A frequency stabilization loop based on the proportional integrator is used in the resonator fiber optic gyro. Proper loop parameters are important to the reciprocal noise suppression, the response speed improvement and loop stabilization. The loop parameters such as the time constant of the low-pass filter, the loop gain, the integration time and the loop delay are analyzed deeply and then optimized. A rotation result of ±0.05°/s has been carried out.