Phase domain model of a second order fiber-optic gyroscope dynamicsystem

摘要

In this paper, we have developed a phase-domain model to analyze anonlinear fiber-optic gyroscope (FOG) system theoretically, and use itto obtain an optimal-designed system. System's design including detailsof signal processing is described here and used to improve system'ssensitivity and precision. From computer's simulation and experimentalresults, we know that 1. The experimental results coincide with theanalytic results, with error less than 4% in the respects of rise time,overshooting, and steady state error; that is proved by the computersimulation for the time domain response of a step and a ramp inputtests. 2. Using the phase-domain model, one can build up one's optimalFOG system with zero steady state error, 6% overshooting, highstability, and short rise time about one of system's natural frequency,i.e. 1/ω_n