OPTIMAL-DESIGN OF A 2ND-ORDER FIBEROPTIC GYROSCOPE DYNAMIC SYSTEM

In this paper, the authors have developed a phase-domain model to anal yse a nonlinear fibre-optic gyroscope system theoretically, and use it to obtain the optimally designed system with a second-order controlle r. From computer simulations and experimental results, one can design a fibre-optic gyroscope system with optimal performance specifications , such as steady state accuracy, percentage overshoot and rise time; e nsure that the optimal second-order system is superior to the optimal first-order system in both steady state error and dynamic responses; r ealize a highly stable second-order fibre-optic gyroscope system with fast response and less overshooting; and optimize it without trial and error efforts.