Research On IFOG's Digital Signal Technology And Mechanical Technology

Since the birth, the FOG has been put into application in many ways, especially in Strapdown Inertial Navigation System, for its many advantages such as simple structure, stability, quick-reaction, higher reliability, small volume and low weight. But because its craft is complex, the cost was high and the volume is big and so on the shortcoming limits its application scope expansion .The paper revolved around the multianalysis the FOG transfer function and in the output signal foundation to enhance the stability and the precision does below works:After analyzing the physical characteristic of the gyro, and with many simulations, the transfer function of the system is set up. Analyzed under the different parameter the FOG step response. As well as the top overall performance carries on the analysis to different parameter.In close-loop FOG, the filter quality has the very tremendous influence to the FOG performance. This article work host when research rotational speed signal output filter, use the FIR filter carries on processing enhances the signal processing operation efficiency, can effective prevent the signal mixes falls distorts, increased the FOG test precision.The mechanism is the FOG important constituent; The FOG vibrates stability is weighs the top performance. This article selects from the FOG's structural material, the fiber optical link size estimates, as well as the FOG system error origin embarks under the vibration situation. Analyzed the FOG carrying on in the structural design process must avoid resonating to the system performance influence, while guarantees the part not resonates, but also must guarantee the system not resonates. Enhances the FOG vibration stability.