Improved FOG Strapdown Inertial Navigation System and Error Analysis

A newly fiber-optic strap-down inertial navigation system with a continuous rotating disk was presented,aimed at improving the performance without adding the cost.Take a research of the technique and performance analysis of such a fiber-optic strapdown inertial system with a continuous rotating disk,providing the platform's composition and principle.Besides,the specific processes of error modifications are given as well.Simulation results indicate that,compared with the conventional method,the proposed approach attenuates the navigation errors by modulation of errors.